Question

Verify a+(b+c)=(a+b)+c
a=89,b=51,c=-31

Answer 1

Answer:

here, a=89, b=51, c=31

LHS            RHS

a+(b+c)=  (a+b)+c

89+(51+31)=(89+51)+31

89+82      =140+31

171 = 171(PROVED)