Để \(5\left(5n+58\right)=34\left(n+8\right)=9n=18\)
nên ta có
\(5\left(5n+58\right)=18\Leftrightarrow25n+290=18\Leftrightarrow25n=-272\Leftrightarrow n=\frac{-272}{25}\)
\(34\left(n+8\right)=18\Leftrightarrow34n+272=18\Leftrightarrow34n=-254\Leftrightarrow n=\frac{-254}{34}\)
\(9n=18\Leftrightarrow n=2\)