### Home > CC2MN > Chapter cc27 > Lesson cc27.1.1 > Problem 7-13

7-13.

Copy and rewrite the following expressions by combining like terms, making zeros, and using the Distributive Property. Visualizing the expressions by using algebra tiles may be helpful. Homework Help ✎

(–3) + 4

*x*+ 2 + 2*x*+ 2*x*–8

*x*+ 4 + (–3)7

*x*^{2}+ 3*x*+ 4 + 7*x*^{2}+ 3*x*+ 45(

*x*– 4)

Group like terms together.

(4*x* + 2*x* + 2*x*) + (−3 + 2)

Simplify.

8*x* − 1

Visualize eight negative *x* algebra tiles. What happens when you add 4 unit tiles but then take 3 of these unit tiles away?

−8*x* + 1

See part (a).

Refer to the Math Notes below.