Question

Juanita wants to model the equation 3 x + 2 = negative x + 6. She begins with the tiles below.

3 x tiles and 2 positive 1 tiles = 1 negative x tile

How can Juanita complete her model?
Put 4 yellow unit tiles on the left side of the equal sign.
Put 4 yellow unit tiles on the right side of the equal sign.
Put 6 green x-tiles on the right side of the equal sign.
Put 6 yellow unit tiles on the right side of the equal sign.

Answer 1

Put 6 yellow unit tiles on the right side of the equal sign.

Explanation: the right side currently shows -x but needs to be -x + 6, so add six positive unit tiles to the right to represent +6.