! Box Paper- Writing Equations

Front

The sum of 21 and a number is 30.

Back

21 + n = 30

Front

You download music for $2 per song and spend a total of $18. What equation represents this situation?

Back

2x = 18

Front

The product of 8 and the sum of a number and 2 is 16.

Back

8 (n + 2) = 16

Front

4 less than a number is 2.

Back

n - 4 = 2

Front

Three times the difference of a number and 9 is 5.

Back

3 (n - 9) = 5