Question 675200
y + 4x - 18 = 0


y + 4y^2 - 18 = 0


4y^2 + y - 18 = 0


(y - 2)(4y + 9) = 0


y - 2 = 0 or 4y + 9 = 0


y = 2 or y = -9/4


So the solutions are y = 2 or y = -9/4