4y 7 5y 3 July 8, 2019 16 32 64 128 4y 7 5y 3 is equal to what expression 2x 4y 7 3x 5y 4 2x 4y 7 3x 5y 4 sustitución 3x 4y 5y 7 3 7 3x 5y 4y 4y 3y2 5y 7 4x 5y 7 3x 4y 5 by elimination method 3 4y 7 2 5y 4 5 4 27x 5y 7 3x 4y 6 6x 5y =- 7 3x 4y 16 5y 7 4y )= 35y 20y 4y 7 3x 5y 4 reducción