x+3y=6 ==>4x+12y=24……1
4x+2y=10……2
1-2得
10y=14
y=7/5
x=9/5
(2)
x/4+y/3=1/6 ==>3x+4y=2 ==>6x+8y=4 ……1
2x-2=3y+2 ==>2x-3y=4 ==>6x-9y=12 ……2
1-2得
17y=-8
y=-8/17
x=22/17