Solve for if
(correct answer)
Explanation: To solve for we must get all of the numbers on the other side of the equation as
.
To do this in a problem where a number is being added to
, we must subtract the number from both sides of the equation.
In this case the number is
so we subtract
from each side of the equation to make it look like this
The
on the left side cancel to get
Then we perform the necessary subtraction to get the answer of
.