\(y-\frac{5}{7}-y=\frac{2}{-3}\)
\(y.\left(\frac{5}{7}-1\right)=\frac{2}{-3}\)
\(y-\frac{-2}{7}=\frac{2}{-3}\)
\(y=\frac{2}{-3}+\frac{-2}{7}\)
\(y=\frac{-20}{21}\)
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