Question

2. If a = -8, b=-7, c= 6, verify that (a+b)+c= a +(b+c)​

Answer 1

Answer:

(a+b)+c=-8+(-7)+6=-8-7+6=-9

a+(b+c)=-8 +(-7+6)=-8+(-1)=-9

SO RHS = LHS

Answer 2

Answer:

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

{-8-7}+6 = -8+{-7+6}

{-15}+6 = -8+{-1}

-15+6 = -8-1

-9 = -9

L.H.S.=R.H.S.