Brush up on your math skills relating to equivalent expressions then try some practice problems to test your understanding.

Common Core

6.EE.A.4 6.EE.A.2.a 7.EE.A.2 6.EE.A.3 7.EE.A.1 6.EE.A.2.c 6.EE.A.2.b 6.EE.B.6