If a=-8,b=-7,c=6,verify that (a+b) +c=a+(b+c)
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Step-by-step explanation:
(a+b)+c=a+(b+c)
(-8+(-7))+6=-8+(-7+6)
(-8-7)+6=-8+(-7+6)
-15+6=-8+(-1)
-9=-8-1
-9=-9
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