Question

a=-20,b=15,c=-25 verify​

Answer 1

Answer:

-30

Step-by-step explanation:

a+(b+c) = (a+b)+c

-20+15+(-25) =(-20+15)+(-25)

-5+(-25)= -5+(-25)

-5-25= -5-25

-30= -30

LHS= RHS