Question

Decide if the expressions in the pair below are equivalent. Explain how you know.

1. X + X + X + X and 4X

Answer 1

Yes they are equivalent. This is because when you add 4 “X” together would would get 4X. For example if X=2, 2+2+2+2=8 and 4(2)=8. They are interchangeable properties

Answer 2

YEs, they are equivalent.

Explanation:

I know this because they are 4 Xs on one side, and it says 4 X on the other. When we add up all of the Xs, we got 4X. 4x=4x