Question

Evaluation: Decisions About Equivalence

Decide if the expressions in each pair are equivalent. Explain how you know.
1.
X + x + x + x and 4x
2.
5x and x + 5

Answer 1

x+x+x+x=4x

x+5=5x

There equivalent

Explanation:

x+x+x+x=4x:

count the number of x's they equal 4 so it would be 4x

x+5=5x

you have 5 x's it would equal 5x