Question

6. Verify that (x + y) + z = x + (y + z) if:
a) x=-8, y = 6 and z=-11
b) x=9, y=-2 and z=-20​

Answer 1

Step-by-step explanation:

(-8+6)+(-11)=-13=(-8)+(6-11)

(9-2)+(-20)=-13=9+(-2-20)

Answer 2

Answer:

( a ) yes, -13

( b ) yes , -13