Solve for x: -2x – 7 = 3

Answers

Answer 1

Answer:

x=-5

Step-by-step explanation:

-2x=3+7

or,-2x=10

or,x=-10/2

x=-5

Answer 2

Answer:

x = -5

Step-by-step explanation:

Add 7 to each side, so it now looks like this: -2x = 10Divide each side by -2 to cancel out the -2 next to x. It should now look like this: x = -5

I hope this helps!


Related Questions

what is the slope or the line going through (0,0) (6,8) A: -6/8 B: -3/4 C: 3/4 D: 8/6

Answers

Answer:

D: 8/6

Step-by-step explanation:

Slope = y 2 - y 1

x2 - x1

= 8 - 0

6 - 0

=8

6

Answer: D. 8/6

Step-by-step explanation:

To solve this, we can use the slope formula, which is  

[tex]\frac{y_2 - y_1}{x_2 - x_1}[/tex]      ← this is [tex]\frac{rise}{run}[/tex]

Plugging in the values of the two points, we get:

[tex]\frac{8 - 0}{6 - 0} = \frac{8}{6} = \frac{4}{3}[/tex]

In your case though, it is D. 8/6

help me plz thank youuuuu

Answers

Answer:

Her profit started to increase but looks like it is soon to plummet so probably not a good idea to invest

Step-by-step explanation:

P = R -C solve for c

Answers

Answer:

[tex]c = -P + R[/tex]

Step-by-step explanation:

Find the greatest common factor of 7 and 7.

Answers

I think it should be 14

What is the domain of the given function?
{x | x= -6, -1, 0, 3}
{yly=-7, -2, 1, 9}
{xx = -7, -6, -2, -1, 0, 1, 3, 9}
{yl y = -7, -6, -2, -1, 0, 1, 3, 9}

Answers

Easy buddy....

_________________________________

Remember, from now on, wherever the function domain is asked

They mean the same inputs or xs of the function.

Now you can answer them yourself but I like to help you to do it buddy.

_________________________________

The first function's domain is :

D = { -6 , -1 , 0 , 3 }

°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°°

The second function's domain is :

D = { -7 , -6 , -2 , -1 , 0 , 1 , 3 , 9 }

_________________________________

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

Andy is buying a car. He negotiated a 7% on a £6500 car. He will pay the full balance in 12 equal monthly payments.
Calculate the amount paid each month.

Answers

9514 1404 393

Answer:

  £562.42

Step-by-step explanation:

Payments on a loan of P at rate r for n months can be found from ...

  A = P(r/12)/(1 -(1 +r/12)^-n)

For r = .07 and n = 12, the payments on a £6500 loan will be ...

  A = £6500(.07/12)/(1 -(1 +.07/12)^-12) = £562.42

Andy will pay £562.42 each month.

Answer:

562.42 pm

Step-by-step explanation:

Which is true of the slopes of parallel lines

Answers

Answer: slopes will be the same!

Step-by-step explanation:

Answer:

In other words, the slopes of parallel lines are equal. Note that two lines are parallel if their slopes are equal and they have different y-intercepts. In other words, perpendicular slopes are negative reciprocals of each other. Here is a quick review of the slope/intercept form of a line

Step-by-step explanation:

Can I please get help

Answers

Answer:

14

Step-by-step explanation:

sum of three angles of a triangle is 180

(x-4) + (11x-11) + (x+13) = 180

13x -2 = 180

13x = 182

x=14

Ibai has taken 2/5 out of a barrel of beer, Ane has drawn a third. It expresses in graphic and numerical form: a) The fraction that they have drawn between the two. b) Which of them has gotten the most?

Answers

Answer:

7/15

Step-by-step explanation:

2/5 + 1/3 is the same as 2/5 + 5/15.. so we add them together to get 7/15. This can not be simplified further

To know who has gotten most I like to think in percentage terms. 2/5 is the same as 40% (2/5 is the same as 4/10 = 40/100 =40%). 1/3 is 33.33% so Ane got more

Answer:

A. 11/15 B. Ibai.

Step-by-step explanation:

First, find the Least Common Multiple, or LCM, of the denominators, which is 15. Then, multiply each denominator by the number that gets the denominator to 15, which is the LCM. Next, multiply the numerator by the same number you multiplied the denominators, which was 3 for Ibai, and 5 for Ane. Finally, compare the two numbers to see which is higher. In this case, Ibai took out 6/15, while Ane took out 5/15, meaning Ibai took out more than Ane. Also, together, Ibai and Ane both drew out 11/15 together.

13) Solve (x + 6)2 = 64. A) x = 8 or x = −8 B) x = 2 or x = −2 C) x = 2 or x = −14 D) x = 4 or x = −16

Answers

For this question the correct answer isn’t on there because I checked it with my advanced graphing and solving calculator the answer is x=26

Answer:

x=2 ,, -14

Step-by-step explanation:

hope this helps

HELP! A graph has a y intercept of 5 and x intercept of -2. Determine the equation in slope-point form.

Answers

y= mx+b
m= 5/2
b= y-intercept = 5

y= 5/2x + 5

Convert 0.04 to a fraction in lowest terms. *

Answers

Answer:

1/25

Step-by-step explanation:

0.04 = 4/100 = 1/25

Answer:

[tex]\frac{1}{25}[/tex]

Step-by-step explanation:

0.04 is equal to [tex]\frac{4}{100}[/tex]. You can simplify this when both the numerator (the top number of the fraction) and the denominator (the bottom number of the fraction) can be divided by the same number. In this case, both numbers can be divided by 4, which would simplify it to its lowest form: [tex]\frac{1}{25}[/tex].

Hope this helps.

Given the functions f(x) = 4x2 - 1, g(x) = x2 - 8x + 5, and h(x) = -3x2 - 12x + 1, rank them from least to greatest based on their axis of symmetry.

Answers

Answer:

h(x), f(x), g(x)

Step-by-step explanation:

Given

The functions

f(x) = 4x² - 1g(x) = x² - 8x + 5h(x) = -3x² - 12x + 1To findRank by value of axis of symmetry in ascending orderSolution

Axis of symmetry is defined by x- value of the vertex which is calculated by a formula -b/2a

f(x) → 0/2*4= 0g(x) → - (-8)/2 = 4h(x) → -(-12)/2(-3) = -2

Ranking in ascending order is

h(x), f(x), g(x)

PLEASE HELP
Given the line and a point on the line, what is the equation of the line in point-slope form?
A) y − (−1) = −3(x − 5)
B) y + (−1) = −3(x − 5)
C) y − (−1) = −3(x + 5)
D) y + (−1) = −3(x + 5)

Answers

THE ANSWER IS C I REPEAT ITS C
The answer is C
C)y-(-1)=-3(x+5)

What is the value of this expression when a = 2 and b = -3?
a^3-b^3/5

Answers

Answer:

7

Step-by-step explanation:

substitute the numbers into the equation

2³-(-3)³/ 5

simplify and solve the cubed numbers

8 - (-27) / 5

35/5 = 7

Find the value of f(-2)​

Answers

Answer:

y = 3.5

Step-by-step explanation:

If you look at the x axis, you know x = -2 so you want to know y.

what is the slope of a line with equation y-3=-1/2(x-2)

Answers

Answer:

1/2 is the slope of a line with equation y.

Find the midpoint.
(-1,6) and (14,9)

Answers

(6.5,7.5) is the midpoint c

Sue wants to put a rectangular garden on her property using 88 meters of fencing. There is a river that runs through her property so she decides to increase the size of the garden by using the river as one side of the rectangle. (Fencing is then needed only on the other three sides.) Let x represent the length of the side of the rectangle along the river. Express the garden's area as a function of x. what is the largest area that can be enclosed?

Answers

Answer:

Area = 44x - x²/2

Step-by-step explanation:

Given that:

Meter of fencing = 88m

Length of side of rectangle along the river = x

Only one more length is needed since river as been used as one side length of the fence.

Length = x

Width of rectangle = y = 2y (for both sides)

Hence ;

x + 2y = 88 meters

Expressing in terms of y

2y = 88 - x

y = (88 - x) / 2

y = 44 - x/2

Area of rectangle = Length * width

Area = x * y

Area = x * (44 - x/2)

Area = 44x - x²/2

Maximum. Area :

Perimeter = 4s

88 = 4s

s = 88/4 = 22

x = 2(22) = 44 = Length ; y = 22 = width

Maximum area = (22 * 44) = 968m²

Help with math...i will give brainlys

Answers

Keep this for future reference.

Answer:

1a. corresponding angles

1b. alternate exterior angles

1c. same side interior angles

2. it is simple, solve for x just like in Algebra, x=9

4x+2=7x-25

4x+27=7x

27=3x

9=x

Step-by-step explanation:

Memo No
Date
Find the square root of 13²​

Answers

Answer: 13

Step-by-step explanation:

The square root and exponent cancel out and you are left with 13.

20 - 9x = x + 10x
What is X?

Answers

Answer: x=1

Explantion: 20+-9x=x+10x
20+-9x=11x
20+-9x+-11x=11x+-11
20+-20x=11x+-11x
20+-20x=0
20+-20+-20=0+-20
-20x=-20
x=1
I got x= 1 too hope it helped

can you help find the slope​

Answers

Answer:

a

Step-by-step explanation:

-3/2(x - 5) = -12. ​

Answers

Answer:

x=13

Step-by-step explanation:

Please help I will mark brainliest ITS DUE IN A FEW MINUTES PLS

Answers

Answer:

All real numbers except 0

Step-by-step explanation:

0 is the only number that's going to make it undefined (btw if you mark brainliest it would be appreciated :) ).

I need help with the slope of this line.​

Answers

The slope is 0.




The formula to find the slope is y2-y1 over x2-x1. If you plug in your numbers, you should have 5-5 over 9-10. Subtract this and you will get your slope!

John is mixing paint so that he can update his apartment. He combines 7L of white paint with 3300 milliliters of blue paint. He uses 1 ½ L of paint to paint a hallway. a) What is the total combined paint? b) How much paint was left after painting? 4.

Answers

Answer:

(a) The total combined paint is 10.3L

(b) 8.8L paint was left after painting

Step-by-step explanation:

From the question, John combines 7L of white paint with 3300 milliliters of blue paint.

First, convert to the same unit, say liters, L.

Now, we will convert 3300 milliliters to liters (L)

{NOTE: 1000 milliliters (mL) = 1 liter (L)}

Since 1000 milliliters = 1 liter

∴ 3300 milliliters = 3300/1000 liters = 3.3 liters

Hence, 3300 milliliters = 3.3 L

Therefore, he combines 7L of white paint with 3.3L of blue paint.

(a) The total combined paint is 7L + 3.3L = 10.3L

∴ The total combined paint is 10.3L

(b) To determine how much paint was left after painting,

From the question, he uses 1 ½ L of paint to paint a hallway, that is, he uses 1.5 L of paint to paint a hallway;

The paint left will be 10.3L - 1.5L

10.3L - 1.5L = 8.8L

Hence, 8.8L paint was left after painting

Every 14 days, Debbie’s dog eats 415 pounds of dog food. If Debbie’s dog eats the same amount of food each day, how many pounds does her dog eat per day?

Answers

Answer:

i thinks its 29

Step-by-step explanation:

divide 415 by 14

Answer:

The answer is 7/1 simplified

Step-by-step explanation:

how do you solve a system of linear equations by graphing

Answers

Answer:

It depends on the equation/coordinates

Step-by-step explanation:

When solving a linear function, you just have to have a straight line in the coordinate plane.

find the slope of this graph

Answers

Answer:

-3

Step-by-step explanation:

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