Question

1. If
a = −8,b = −7, c = 6,

verify that (a + b) + c = a + (b + c).

Answer 1

Answer:

( -8 + -7) + 6= -8 + (-7 + 6)

-15 + 6 = -8 + -1

-9 = -9

Answer 2

Answer:

Answer in attachment pic.

I hope this helps you.