SOLUTION: prove that: b-a=b+(-a)

SOLUTION: prove that: b-a=b+(-a)

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Question 209154: prove that: b-a=b+(-a)
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
b-a=b+(-a)
In the +(-a)
a minus times a plus is a minus
so b-a=b-a
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