Question

Find three consecutive integers whose sum is -42

Answer 1

-15,-14,-13

Explanation:

Let x = the first integer

Let x + 1 = the second integer

Let x + 2 = the third integer

The addition of all three equal -42

x + x + 1 + x + 2 = -42 Combine like terms

3x + 3 = -42 subtract 3 from both sides

3x + 3 - 3 = -42 - 3

3x = -45 Divide both sides by 3

x = -15

Check

-15 + -14 + -13 = -42

-42 = -42