Question

Varify (a+b)+c=a+(b+c) for a=-2,b=9,c=-18​

Answer 1

Step-by-step explanation:

LHS=(a+b)+c

= (-2+9)+(-18)

= 7-18

= -11

RHS =a+(b+c)

= -2+(9-18)

= -2-9

= -11

LHS= RHS

Verified....