y/3-x+1/6=3 2(x-y/2)=3(x+y/18)要过程呦!答案是x=-7,y=6
问题描述：
y/3-x+1/6=3 2(x-y/2)=3(x+y/18)要过程呦!答案是x=-7,y=6
答
y/3=3-1/6+x 2x-y=3x+y/6
y=9-0.5+3x -y=x+y/6
y=8.5+3x x=-7/6y
y=8.5+3(-7/6y) x=-7/6*9/17
y=8.5-3.5y x=-63/102
4.5y=8.5 x=-21/34
y=45/85
y=9/17
答
y/3-(x+1)/6=3 两边乘以6 得 2y-(x+1)=18x-2y+19=0 两边乘以66x-12y+19*6=0(1)2(x-y/2)=3(x+y/18) 化简得 2x-y=3x+y/6 两边乘以6 得12x-6y=18x+y 6x+7y=0 (2)(1)-(2)-19y+19*6=0y=6带回(2)6x+7*6=0x=-7...