Will someone help me with this please?? I can’t understand it

Given:
salary$800
commision9% on the sales over$1350
Required:
He would need to sell
Explanation:
Based on the given conditions, formulate
[tex]\begin{gathered} 800+(x-1350)\times9\%=2700 \\ \\ apply\text{ the distributive property} \\ \\ 800+0.09x-121.5=2700 \\ \\ Combine\text{ like terms} \\ \\ 678.5+0.09x=2700 \end{gathered}[/tex][tex]\begin{gathered} rearrange\text{ terms} \\ \\ 0.09x=2700-678.5 \\ \\ 0.09x=2021.5 \\ \\ x=\frac{2021.5}{0.09} \\ \\ x=22461.11 \end{gathered}[/tex]Required answer;
22461.11