13. The number of integer values of $m$, for which the $x$-coordinate of the point of intersection of the lines $3 x + 4 y = 9$ and $y = m x + 1$ is also an integer, is : (A) 2 (B) 0 (C) 4 (D) 1
13. The number of integer values of $m$, for which the $x$-coordinate of the point of intersection of the lines $3 x + 4 y = 9$ and $y = m x + 1$ is also an integer, is :\\
(A) 2\\
(B) 0\\
(C) 4\\
(D) 1\\