Question

1 .If a = -8, b = -7, c = 6, verify that (a + b) + c = a +(b + c).
2.If a = -9 and b = -6, show that (a - b) = (b - a).​

Answer 1

Answer:

Step-by-step explanation:

1. Given - a= -8, b = -7, c = 6

To verify - (a + b) + c = a + (b + c)

Verification - First substitute the values

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

-15 + 6 = -8 - 1

-9 = -9

Therefore,  (a + b) + c = a + (b + c)

2. 1. Given - a= -9, b = -6

To verify - (a - b) = (b - a)

Verification - First substitute the values

(-9 - (-6)) = (-6 - (-9))

-3 = 3

Therefore, (a - b) $\neq$ (b - a)

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