5y 3 2y 7 July 8, 2019 16 32 64 128 5y 7 2 3 2y 14 5y 3 2y 2 7y 4 3y 3 5y 3 2y 1 7 1 y 2 9 4 5y 3 )- 2y 7 7x 5y 3 3x 2y =- 7 7y 3 3y 5y 3 2y 7 2x 5y 3 7x 2y 7 5y 3 2y 2y 84 5 7 5y 7 2 3 2y 14 solution 4x 5y 3 dan 7x 2y 7 4x 5y )+( 6x 3 )-( 7x 2y 5y 5 2y 3 3y 7 5y 7 2y 35 3 1 4y 3 2y 12 7 5y 20 Solve 2y 3 5y 7