X y 3 2x 3y 12 July 8, 2019 16 32 64 128 X y 5 3 và 2x 3y 12 5 xy )- 3 2x 3y )= 12 X 3 0 y 2 0 2x 3y 12 X 3 y =- 2 is a solution of equation 2x 3y 12
