Multiply both sides by \(a\).
\[10=\frac{5}{7}a\]
Simplify \(\frac{5}{7}a\) to \(\frac{5a}{7}\).
\[10=\frac{5a}{7}\]
Multiply both sides by \(7\).
\[10\times 7=5a\]
Simplify \(10\times 7\) to \(70\).
\[70=5a\]
Divide both sides by \(5\).
\[\frac{70}{5}=a\]
Simplify \(\frac{70}{5}\) to \(14\).
\[14=a\]
Switch sides.
\[a=14\]
a=14
