Question

Verify that (a+b)+c=a+(b+c) by taking

a = -12, b = -9/11, c = 7/-12​

Answer 1

Answer:

(a+b)+c=a+(b+c)

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

(-15)+6=-8+(-1)

-9=-9

LHS=RHS

Step-by-step explanation:

Answer 2

refer the above attachment..

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hope it will helpful..