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OpenStudy (anonymous):
Matrices help! Urgent! "Find -3a+6B". Photo included.
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OpenStudy (anonymous):
OpenStudy (loser66):
do you know how to have -3A?
OpenStudy (anonymous):
Not really. Do i multiply all numbers in A by -3?
OpenStudy (loser66):
I think so. ok, let try, what do you have when multiply -3 into it?
OpenStudy (loser66):
|dw:1375482432512:dw|
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