SOLUTION: I need help with this problem 9-((-5)-7)

SOLUTION: I need help with this problem 9-((-5)-7)

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Question 351829: I need help with this problem 9-((-5)-7)
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
9-((-5)-7) = 9-(-12) = 9+12 = 21

So 9-((-5)-7) = 21
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