CPM Homework Help : CCA Problem 3-40

Translate the Equation Mat at right into an equation. Do not simplify your equation. Remember that the double line represents “equals.”

Hint:

Count up the number of each type of tile in each section, keeping track of the tiles' signs and whether they're being added or subtracted.

Answer:

$2+(−2x)−(−x+4)=−3+2−(x−2)$

Shaded tile is plus 1. Tile is negative 1.