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Mathematics 20 Online
OpenStudy (anonymous):

How can I solve 3x-y=9 so that it equals y=9-3x?

OpenStudy (anonymous):

You can't. 3x-y = 9 would give you y=3x-9

OpenStudy (anonymous):

That's what I thought... I guess this program is wrong?

OpenStudy (anonymous):

yes , you are right Ekscentrix

OpenStudy (anonymous):

check the signs

OpenStudy (anonymous):

Okay, thnx!

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