Question

A mirror should be centered on a wall. The mirror is 4 feet wide and the wall is 20 feet wide. Which equation helps determine the distance x on each side of the mirror?

x + 4 + x = 20


4 + x + 4 = 20


x = 20 + 4 + 4


4 = 20 + x + x

Answer 1

a.) x+4+x=20 should be the answer