Question

What is the solution to this equation?
x-8=15
A. X=13 B.X=17 C. X=7 D. X=23

Answer 1

X-8=15
The answer is D. X=23

Answer 2

x-8= 15

x-8+8=15+8

x= 23

Check answer by using substitution method

x-8= 15

23-8= 15

15= 15

Answer is X= 23 (D.)