The given equation is
[tex]\frac{x}{10}-4=5[/tex]First, we add 4 on each side.
[tex]\begin{gathered} \frac{x}{10}-4+4=5+4 \\ \frac{x}{10}=9 \end{gathered}[/tex]Then, we multiply 10 on each side.
[tex]\begin{gathered} \frac{x}{10}\cdot10=9\cdot10 \\ x=90 \end{gathered}[/tex]