### Home > CCA > Chapter A > Lesson A.1.1 > Problem A-6

A-6.

Suppose you put one of your *x*-tiles and two unit tiles with another pile of three *x*-tiles and five unit tiles. What is in this new pile? Write it as a sum. A-6 HW eTool (CPM) Homework Help ✎

Write down the number and types of tiles.

*x* + 2 + 3*x* + 5

Combine like terms.

4*x* + 7

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