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What is 3x-5y=12 with a substitution of X=3y
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What is 3x-5y=12 with a substitution of X=3y

User CTarczon
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3x-5y=12
X=3y

3(3y)-5y=12
9y-5y=12
4y=12
y=3

X=3y
X=3(3)
X=9
User Kent Bull
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