Question

If a = -8 , b = -7, c = 6 , verify that (a + b) +c = a + (b +c)

Answer 1

Step-by-step explanation:

Given That

$a = -8$

$b = -7$

$c = 6$

We need to verify that $(a+b)+c = a+(b+c)$

$L.H.S = (a+b) + c$

Substituting the values given

⇒$[-8+(-7)]+6$

⇒$(-8-7)+6$

⇒$-15 + 6$

⇒$-9$

$R.H.S = a+(b+c)$

⇒$-8+(-7+6)$

⇒$-8+(-1)$

⇒$-9$

Since $L.H.S=R.H.S$

$(a+b)+c = a+(b+c)$ is verified

Answer 2

Step-by-step explanation:

L.H.S

(-8 -7) +6

= -15 + 6

= -9

R.H.S

-8 + (-7 +6)

= -8 -1

= -9

hence L.H.S = R.H.S