5(x-5)=15
Divide each term in the equation by 5.
(5(x-5))/(5)=(15)/(5)
Simplify the left-hand side of the equation by canceling the common terms.
x-5=(15)/(5)
Simplify the right-hand side of the equation by simplifying each term.
x-5=3
Since -5 does not contain the variable to solve for, move it to the right-hand side of the equation by adding 5 to both sides.
x=5+3
Add 3 to 5 to get 8.
The answer is C, x=8