解方程y/3-(x+1)/6=3,2(x-y/2)=3(x+y/18)thx.

解方程y/3-(x+1)/6=3,2(x-y/2)=3(x+y/18)thx.
解方程y/3-(x+1)/6=3,2(x-y/2)=3(x+y/18)
thx.

解方程y/3-(x+1)/6=3,2(x-y/2)=3(x+y/18)thx.
（1）化简得
y=1/2*x+19/2 (3)
用(3)式把(2)式的y替换
2(x-(1/4*x+19/4))=3(x+1/36*x+19/36)
化简
24x-6x-114=36x+x+19
-19x=133
x=-7 (4)
(4)代入(3)
y=1/2*(-7)+19/2=6

y/3-(x+1)/6=3
2(x-y/2)=3(x+y/18)
得：2y-(x+1)=18
6(x-y)=x+y
得：2y-x=19
5x=7y
x=133/3
y=95/3

y/3-(x+1)/6=3 (1)
2(x-y/2)=3(x+y/18) (2)
（1）化简得
y=1/2*x+19/2 (3)
用(3)式把(2)式的y替换
2(x-(1/4*x+19/4))=3(x+1/36*x+19/36)
化简
24x-6x-114=36x+x+19
-19x=133
x=-7 (4)
(4)代入(3)
y=1/2*(-7)+19/2=6

x=-7,y=6