[tex]\begin{gathered} \text{ We wil solve the equation } \\ \frac{n}{10}+9=16,\text{ if we substract 9 to eah side} \\ \frac{n}{10}+9-9=16-9 \\ \frac{n}{10}=7,\text{ multiplying both sides by 10} \\ \\ \frac{n}{10}\cdot10=7\cdot10 \\ n=70 \\ \\ \text{and we solved the equation!} \end{gathered}[/tex]
