Hey there!
When we solve for x, we need to isolate x on one side.
This is just a one-step equation, meaning there is only one thing we need to do to solve for x, or isolate x.
Starting with 87 + x = 100:
Subtract 87 from each side.
87 - 87 + x = 100 - 87
Simplify. Subtracting 87 from 87 makes it equal to 0.
x = 13
Your answer is A. 13.
Hope this helps!
Hello!
The answer to the problem is A) 13
Move all terms containing x to the left, all other terms to the right.
Add '-87' to each side of the equation
[tex]87 + -87 + x = 100 + -87[/tex]
Combine like terms: 87 + -87 = 0
[tex]0 + x = 100 + -87[/tex]
[tex]x = 100 + -87[/tex]
Get your answer
[tex]x=13[/tex]
Hope This Helps!
