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Mathematics 8 Online
OpenStudy (anonymous):

find 3x-y-3z if =-2,y=1,and z=2

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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