Question

Verify that (a + b) +c = a +(b + c) by taking a = -2 , b = -2/3 , c = -3/4 14

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Answer 1

Answer:

Verification

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• a = -2

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• b = - 2/3

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• c = -3/4 14 = -45/4

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

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$\large \rm⇒ \: \left( - 2 + \dfrac{ - 2}{3} \right) + \dfrac{ - 45}{4} = - 2 + \left( \dfrac{ - 2}{3} + \dfrac{ - 45}{4} \right)$

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$\large \rm⇒ \: \left( \dfrac{ - 6 - 2}{3} \right) + \dfrac{ - 45}{4} = - 2 + \left( \dfrac{ - 8- 135}{12} \right)$

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$\large \rm⇒ \: \left( \dfrac{ - 8}{3} \right) + \dfrac{ - 45}{4} = - 2 + \left( \dfrac{ - 143}{12} \right)$

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$\large \rm⇒ \: \dfrac{ - 32 - 135}{12} = \dfrac{ - 24- 143}{12}$

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$\boxed{ \large \rm \therefore \: \dfrac{ - 167}{12} = \dfrac{ - 167}{12} }$

Answer 2

Answer:

Given that a=-2, b=-2/3, c=-3/4

Step-by-step explanation:

(a+b)+c=(-2-2/3)-3/4

=-24-8-9/12

=-41/12

And then RHS :- a+(b+c)

Hope it helps u

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