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OpenStudy (anonymous):
find 3x-y-3z if =-2,y=1,and z=2
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OpenStudy (loinducoeur):
Substitute the numbers into the equation. So, it'll be 3(-2) - 1 -3(2). Do you think you could work that out?
OpenStudy (anonymous):
no
OpenStudy (loinducoeur):
No? Okay, let's do it in separate steps: 3 x -2 = ? -3 x 2 = ? The -1 is on its own, so we can leave that for now. I'm sure you can work out the two calculations above.
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