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OpenStudy (anonymous):
Suppose you want to subtract: 9 - (-6). Re-write this subtraction as an ADDITION of signed numbers. 9 - (-6)
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OpenStudy (anonymous):
9+6 because a minus a negative is the same as adding.
OpenStudy (anonymous):
what about -6-3?
OpenStudy (anonymous):
subtraction is defined by adding the opposite... a - b = a + (-b)
OpenStudy (anonymous):
no, -3 - 6 = -3 + (-6)
OpenStudy (anonymous):
yeah my bad, sorry got mixed up on that one.
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OpenStudy (anonymous):
-7 - (-8)
OpenStudy (anonymous):
i dont understand these rewrite ones at all :(
OpenStudy (anonymous):
-7+8
OpenStudy (anonymous):
anymore?
OpenStudy (anonymous):
wanna answer my message?
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