Question

1. Simplify:
(1) (2-1 - 3-1)-1 + (6-1-8-1)-1​

Answer 1

Answer:

+5

Step-by-step explanation:

(2-1-3-1)-1+(6-1-8-1)-1

(1-4)-1+(5-9)-1

(-3)-1+(-4)-1

+3-1 +4-1

+2 +3

+5