Question

Please answer the sum step by step

Answer 1

Answer:

(-8-7)+6=-15+6=-9

-8+(-7+6)= -8-1=-9

L.H,S=R.H.S

Answer 2

Answer: -7 =-9

Step-by-step explanation:

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

(-15)+8 = -8+(-1)

-7= -9