Question

Which equation is related to the equation shown?

x + 3 = 12


A.
x = 12 + 3

B.
x = 12 ÷ 3

C.
x = 12 − 3

D.
x = 12 • 3

Answer 1

Subtract 3 on both sides, to isolate x.

Answer 2

This can be done by the Subraction Property of Equality. SO if you want to take away 3 from the left side, you need to take away 3 from the other side.