Solve for x and y:
2x−3y=9,3x+7y=2 (y≠0).
the equation 2x-3/y=9 -------(1) and eq. 3x+7/y=2 ------(2) now multiply eqn (1) by 3 and eqn (2) by 2, and then subtracting we get ;
-23 = 23y
so y= -1 and x=3