Question

verify that (a+b)+c=a+(b+c) by taking please solve​

Answer 1

$( a+b ) +c = a+ ( b +c ) \\ ( - 7 + 4) + \frac{ - 2}{11} = - 7 + (4 + \frac{ - 2}{11} ) \\ - 3 + \frac{ - 2}{11} = - 7 + \frac{42}{11} \\ \frac{ - 33 + ( - 2)}{11} = \frac{ - 77 + 42}{11} \\ \frac{ - 35}{11} = \frac{ - 35}{11} \\ hence \: proved$

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