Y 7 x 3y 4 July 8, 2019 16 32 64 128 X y 7 2x 3y 4 7 x 5 2x y 4 3y 5 4x y 7 x 3y 5 Y x 7 4x 3y =- 7 Y =x 7 dan 4x + 3y =-7 Solve x y 7 2x 3y 4 If x 3y y 7 x 4 X 3y 4 =( x y 7 find dy dx 4x y 3y 7 x 8y 4 4x y 2 x 3y 7