Question

[(-9)+(-7)]+(-14)=(-9)+(-7)+(-14)]

Answer 1

Answer:

30=30

Step-by-step explanation:

{-9-7}+(-14)=(-9)+{-7-14}

-16-14=-9+(-21)

-30=-9-21

-30= -30

30=30

L.H.S=R.H.S

Answer 2

Answer:

- 1 6 = - 1 6

Step-by-step explanation:

[ ( - 9 ) + ( - 7 ) ] + ( - 1 4 ) = ( - 9 ) + ( - 7 ) + ( - 1 4 ) ]

[ ( - 9 ) + ( - 7 ) ] = ( - 9 ) + ( - 7 )

[ ( - 9 ) - 7 ] = ( - 9 ) - 7

[ - 9 - 7 ] = - 9 - 7

- 9 - 7 = - 9 - 7

- 1 6 = - 1 6