how do I solve 3xy+7y+2=12 when x=2

I also need help with solving 2x²+2y=9 when x=3
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1 Answer

3xy +7y+2=12

3xy+7y=10

y(3x+7)=10

y=10 / (3x+7)

EVALUATE y at x=2...y=10 / (6+7)

y=10 /13

y=0.769230769
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