Question

Which statement best explains why the expression 7x - 2x is equivalent to 5x?

Answer 1

The variable x is a placeholder for a number. Think of it like a box where the number goes inside.

7x = we have 7 boxes

2x = two boxes

7x - 2x = 5x represents the idea of starting off with seven boxes and taking away two of them to end up with five boxes at the end.

Answer 2

Given data

*The given expression is 7x - 2x

Simplify the above-given expression as

`7x-2x=5x`

Thus, the simplified expression equals to 5x