[(-2)+(-9)]+6=(-2)+[(-9)+6] – InterviewSolution

1.

[(-2)+(-9)]+6=(-2)+[(-9)+6]

Answer»

(-11)+6=-2+(-3)-5=-5so it is proof

after solving we get-11+6= -2+-3=-5=-5

[-2+(-9)]+6=(-2)+[(-9)+6][-2-9]+6=(-2)+[-3]-11+6=(-2-3)-5=(-5) hence proved.

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