Получится 11 и остаток 1. Решить эту задачу можно....
[m]\left\{\begin {matrix}x+y=73\\x=11y+1\end {matrix}\right.[/m]
[m]\left\{\begin {matrix}\underbrace{11y+1}_{x}+y=73\\x=11y+1\end {matrix}\right.[/m]
[m]\left\{\begin {matrix}12y=73-1\\x=11y+1\end {matrix}\right.[/m]
[m]\left\{\begin {matrix}12y=72\\x=11y+1\end {matrix}\right.[/m]
[m]\left\{\begin {matrix}y=6\\x=11\cdot 6+1\end {matrix}\right.[/m]
[m]\left\{\begin {matrix}y=6\\x=67\end {matrix}\right.[/m]