Question

Rewrite each subtraction as an addition. Solve.

1. x - 7 = 12 2. y - (-1) = -5 3. -4 = p - 2 4. -7 = 4 - a

Answer 1

Answer: x = 19, y = -6, p = -2, a = 11

Explanation:

By replacing the letters by each number, you can see that they are correct.