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OpenStudy (anonymous):
simplify -(-8m)-(-7m+2)
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OpenStudy (zzr0ck3r):
8m +7m -2 15m-2
OpenStudy (zzr0ck3r):
-*(-) = +
OpenStudy (anonymous):
i was getting 15m+2
OpenStudy (zzr0ck3r):
-(7m+2) = -7m-2
OpenStudy (zzr0ck3r):
the minus sign gets distributed to all terms in the ()
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OpenStudy (anonymous):
oh ok ;) thanks
OpenStudy (zzr0ck3r):
make sence?
OpenStudy (anonymous):
yes
OpenStudy (zzr0ck3r):
so -(-a+b-(-c)-d) = a-b-c+d
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