Question

Simplify this expression: 13 + (–12) – (–5) = ?
A. 30
B. 6
C. –30
D. –6

Answer 1

13 + (-12) - (-5) =

First, let us simplify our brackets (remove parentheses). Negative and positive signs rules: + and - makes -.

`13 - 12 + 5`

Second, let's continue to add and subtract now. Let's start off with (13 - 12) which will give us 1. Our problem will look like:
`1 + 5` . Easy, (1 + 5) equals 6.

Answer:
`\fbox { B) 6 }`