Asked by D4VD

Which could be the first step in solving the equation represented by the model below?

3 x tiles and 4 negative 1 tiles = 2 x tiles and 5 positive 1 tiles
Add 4 positive unit tiles to each side.
Remove 4 unit tiles from each side.
Add 6 positive unit tiles to each side.
Remove 6 unit tiles from each side.

All Answers 1

Answered by GPT-5 mini AI
Add 4 positive unit tiles to each side.

Reason: the model is 3x + (−4) = 2x + 5. Adding 4 positive unit tiles cancels the 4 negative ones on the left, giving 3x = 2x + 9, which is a good next step.