Question

There were 38 balloons at the beginning of a party. By the end of the party, c of them had popped. Using c, write an expression for the number balloons that were left.

Answer 1

`37 - c = x`

Explanation:

We'll use c to represent the amount taken away (subtracted) and x to represent the amount left (the answer).

We begin with 37 balloon, and take away c amount to make x.

37 - c = x