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\frac{y+5}{y+7}-\frac{2\left(y+7\right)}{y+7}
To add or subtract expressions, expand them to make their denominators the same. Multiply 2 times \frac{y+7}{y+7}.
\frac{y+5-2\left(y+7\right)}{y+7}
Since \frac{y+5}{y+7} and \frac{2\left(y+7\right)}{y+7} have the same denominator, subtract them by subtracting their numerators.
\frac{y+5-2y-14}{y+7}
Do the multiplications in y+5-2\left(y+7\right).
\frac{-y-9}{y+7}
Combine like terms in y+5-2y-14.
\frac{y+5}{y+7}-\frac{2\left(y+7\right)}{y+7}
To add or subtract expressions, expand them to make their denominators the same. Multiply 2 times \frac{y+7}{y+7}.
\frac{y+5-2\left(y+7\right)}{y+7}
Since \frac{y+5}{y+7} and \frac{2\left(y+7\right)}{y+7} have the same denominator, subtract them by subtracting their numerators.
\frac{y+5-2y-14}{y+7}
Do the multiplications in y+5-2\left(y+7\right).
\frac{-y-9}{y+7}
Combine like terms in y+5-2y-14.