Question

If a= -9 , b = -6 ,c =7 of verify that (a+b)+c=a+(b+c)​

Answer 1

$\pink{\bold{\underline{ ✪ UPSC-ASPIRANT✪ }}}$

$\red{\bold{\underline{\underline{❥Question᎓}}}}$If a= -9 , b = -6 ,c =7 of verify that (a+b)+c=a+(b+c)

$\huge\tt\underline\blue{❲Answer❳</p><p> }$

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$⟹(a + b) + c = a + (b + c)$

$⟹( - 9 + ( - 6)) + 7 = - 9 + ( - 6 + 7)$

$⟹ - 15 + 7 = - 9 + 1$

$⟹ - 8 = - 8$

Verified✓

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Answer 2

Step-by-step explanation:

{-9+(-6)}+7 = -9+{(-6)+7}

-9-6+7 = -9-6+7

-15+7 = -15+7

8 = 8

Hence Proved!

I hope this helps you!