解方程组x+1/3=2y 3(x+1)-y=16

问题描述:

解方程组x+1/3=2y 3(x+1)-y=16

整理得:① x + 1 = 6 y② 3 ( x + 1 ) - y = 16把②代入①得:3 × 6 y - y = 1618 y - y = 1617 y = 16y = 16 / 17代入①得:x + 1 = 6 × 16 / 17x = 96 / 17 - 1x = 79 / 17∴ x = 79 / 19 ,y = 16 / 17...