Question

please answer the 10th question ab pant only​

Answer 1

Answer:

maaf saya tidak mengerti

Answer 2

Answer:

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

 (42 + (-37)) + (-81) = 42 + (-37+(-87))

 LHS                         RHS

 -76                            -82

⁖ LHS ≠ RHS

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

  (32+0) + (-44) = 32 + (0+(-44))

  LHS                         RHS

   -12                           -12

  ⁖ LHS = RHS

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