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OpenStudy (anonymous):
What is 5 - -7 ?
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OpenStudy (anonymous):
Five - seven is 2 5-7=2
OpenStudy (lgbasallote):
hint: 5- (-7) is simply 5 + 7 does that help?
OpenStudy (anonymous):
So u add them or subtact?
OpenStudy (shane_b):
If you're subtracting a negative number then that's the same as addition. See @lgbasallote's post.
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