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OpenStudy (anonymous):
Why can a subtraction problem be rewritten as an addition problem without changing the outcome?
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OpenStudy (anonymous):
it can because subtraction is the opposite of addition.
OpenStudy (anonymous):
So if you had 2- -2=4 if you were to do the opposite of that problem like 2 + -2=4
OpenStudy (anonymous):
sorry ignore my last post
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