1. 2(-3) + 4
-6 + 4 = -2
2. -4^2 - 3
16 - 3 = 13
3. 2 (m + 2) + 4
2m + 4 + 4
2m + 8
2m = -8
m = -4
4. i forgot how to do this. sorry :'(
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