Question

(x-1)(y-10)=9

 

Answer 1

\(\left[{}\begin{matrix}x-1=9\\y-10=9\end{matrix}\right.\left[{}\begin{matrix}x=10\\y=19\end{matrix}\right.\)

Answer 2

(x-1)*(y-10) = 9

toán lớp mấy vậy khó qué