Question

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

Answer 1

13 + (-12) - (-5)

13 - 12 + 5

1 + 5

= 6.

Answer is A)

Answer 2

 13+(-12) is the same as 13-12 which is 1 

1-(-5) 

two negatives make a positive so this really means 
1+5 which equals 6 
=A.