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OpenStudy (anonymous):
Evaluate: -13 - 4 A -17 B -9 C 9 D -7
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OpenStudy (anonymous):
when 2 or more numbers are the same sign, they can "sum" conserving th same sign :D
OpenStudy (anonymous):
@ankolix so the answer would be A?
OpenStudy (anonymous):
I think so :D
OpenStudy (anonymous):
@ankolix can you help with another?
OpenStudy (anonymous):
ok, medals please ;) :D
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