All categories

3 years ago

What is the answer to X- 7 = -15

Mathematics

2 answers:

belka [17]3 years ago

7 0

Move all terms not containing x to the right side of the equation to get x = -8. So, your answer is -8.

stepan [7]3 years ago

6 0

Answer:

Step-by-step explanation: first you add +7 to -7 to get 0 then you add the other +7 to the -15 and get - 8 so now the answer is x=-8

You might be interested in

Help even tho it’s multiple choice make sure you are correct... I beg you lol

kondaur [170]

Answer:

The equation of the line is:

$y=(-\frac{1}{2})x+1$

Therefore, option a is the correct answer.

Step-by-step explanation:

Given the points

(-2, 2)

(4, -1)

Finding the slope

$\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(-2,\:2\right),\:\left(x_2,\:y_2\right)=\left(4,\:-1\right)$

$m=\frac{-1-2}{4-\left(-2\right)}$

$m=-\frac{1}{2}$

As the point-slope form of the equation of the line is

$y-y_1=m\left(x-x_1\right)$

where m is the slope

substituting the values $m=-\frac{1}{2}$ and the point (-2, 2)

$y-y_1=m\left(x-x_1\right)$

$y-2=\frac{-1}{2}\left(x-\left(-2\right)\right)$

$y-2=\frac{-1}{2}\left(x+2\right)$

$y-2=-\frac{1}{2}\left(x+2\right)$ ∵ $\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{-a}{b}=-\frac{a}{b}$

Add 2 to both sides

$y-2+2=-\frac{1}{2}\left(x+2\right)+2$

$y=(-\frac{1}{2})x+1$

Hence, the equation of the line is:

$y=(-\frac{1}{2})x+1$

Therefore, option a is the correct answer.

4 0

3 years ago

Im having trouble with this, mind answering a question, or 2?

Aleks04 [339]

Question 5 - A

Question 6 - B

7 0

3 years ago

If a and b are non-negative integers, is ab prime?

andrew-mc [135]

No because ab can be divided by a and b.

8 0

3 years ago

Sum of two numbers = 14

Solnce55 [7]

It is 10+4
Then 10x4
The difference is 6
So these are the numbers

7 0

3 years ago

Order Of operation.

Nataly_w [17]

Answer:

I think the answer is $798

Step-by-step explanation:

143×2=286

200×2=400

56×2=112

286+400+112=$798

4 0

3 years ago

Read 2 more answers