deborahpoueriet7 deborahpoueriet7 01-12-2021 Mathematics contestada What is the solution to the system of equations? Use any method you prefer to solve. y=4x-3y=4x−3 y=-2x+9y=−2x+9 a. (-3, 9) b. (4, -2) c. (2, 5) (6, 21)