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Janessa Cantu
Mathematics
11 November, 11:50
What is y=x-7 3x-3y=21 by solving by substitution
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Jadyn Spears
11 November, 12:07
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Ok first you really have plug in x-7 into y
So it turns into 3x-3x-21=21 I'm pretty sure you can figure the rest
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