SOLUTION: (-12) - (7-(-6)) - (7-(-15)-(-10)) how is the answer -57?
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Question 212380: (-12) - (7-(-6)) - (7-(-15)-(-10)) how is the answer -57?
Answer by math problem solving(30) (Show Source): You can put this solution on YOUR website!
(-12) - (7 - (-6)) - (7 - (-15) - (-10))
= (-12) - (7 + 6) - (7 + 15 + 10) ................. note that a-(-b)=a+b
= (-12) - 13 - 32
= -12 - 13 - 32 .........................note that (-a) = -a
= -57
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