Under Construction

Jika  $ 4X \times Y9 = 3397 $, berapakah $ X+Y $?

$ \left( \begin{matrix} y_1 \\ y_2 \\ \vdots \\ y_n \\ \end{matrix} \right) $   $ \left( \begin{matrix} 1 & x_1 \\ 1 & x...