solve for x in terms of y and z, assuming y does not equal 3:
xy = 3x + 2y + z.
thanks in advance ! :)
xy = 3x + 2y + z
xy - 3x = 2y + z
x(y - 3) = 2y + z
(2y + z)
x = _______
(y - 3 )
+113 
