Question

HELP PLZ

simplify, showing your steps. Tell the property you used in each step.

1/2 (1*2) + - 1

Answer 1

So remember PEMDAS. First parentheses, so 1*2=2. 1/2(2)+-1. Then multiply is the next step so 1/2(2)=1. Then subtract. 1+-1=0

Answer 2

tyler:
http://openstudy.com/groups/mathematics#/groups/mathematics/updates/4ea0a1710b8bf5b42a2ba3e9

Answer 3

(1/2)(1*2)+(-1)
(1/2)(2)+(-1) (multiplicative identity property)
(1)+(-1) (multiplicative inverse property)
0 (additive inverse property)