2y x 7 y x 5 July 8, 2019 16 32 64 128 Solve the simultaneous equations 2y x 7 y x 5 7 x 2y 5 8 x 7 y 15 X+y=5 dan x+2y = 7 maka X y 5 dan x 2y 7 X 5 y 7 và x 2y 57
