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OpenStudy (vshiroky):
help
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OpenStudy (vshiroky):
OpenStudy (anonymous):
start by replacing \(y\) in the first equation by \(3x\) to get \[x+3x=12\] then solve for \(x\)
OpenStudy (vshiroky):
x=3
OpenStudy (anonymous):
yes
OpenStudy (vshiroky):
y=9?
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OpenStudy (anonymous):
yes
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