Question

Which expression is equivalent to |8| + |-7|

Answer 1

-7 + 8 = 1. Draw a number line. It might help

Answer 2

15

Explanation:

The modulus sign (| |) is used to convert a number (positive or negative) to a positive one.

| 8 | is already positive, therefore it still equals 8.

| -7 | is negative, therefore it equals 7.

| 8 | + | -7 | = 8 + 7 = 15