1

Problem

Solve for x in the equation: x − 7 = - 8.

2

Step

The given equation

x − 7 = - 8

3

Step

Add 7 to both sides of the equation:

x − 7 + 7 = − 8 + 7

4

Step

After simplification, we obtain x value

x = - 1

5

Solution

So, the solution for x is x = −1.

6

Sumup

Please Summarize Problem, Hint, Clue, Formula and Steps

Choices

7

Choice-A

This is the correct solution. When x = −1 is substituted into the original equation, both sides are equal

Correct -1

8

Choice-B

This is not the correct solution. If you substitute x = 2 into the original equation, it does not hold true

Wrong 2

9

Choice-C

This is not the correct solution. If you substitute x = −3 into the original equation, it does not hold true

Wrong -3

10

Choice-D

This is not the correct solution. If you substitute x = -15 into the original equation, it does not hold true

Wrong -15

11

Step

Option

A

12

Sumup

Please Summarize Choices