−2x+3y=5-2 x+3 y=5−2x+3y=5
−4x+3y=5-4 x+3 y=5−4x+3y=5
−2x+3y=25-2 x+3 y=25−2x+3y=25
−4x+3y=25-4 x+3 y=25−4x+3y=25