Question

if a=-8, b=-7, c=6 verify that (a + b) + c = a + (b + c)​

Answer 1

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

-15+6=-8-1

-9=-9

Answer 2

Answer:

$(a + b) + c = a + (b + c) \\ ( - 8 - 7) + 6 = - 8 + ( - 7 + 6) \\ - 15 + 6 = - 8 - 1 \\ - 9 = - 9 \\ \\ hence \: verified.$

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