解方程组3(x+y)-4(x-y)=4,x+y除以2+x-y除以6=1
来源：学生作业帮助网 编辑：六六作业网 时间：2025/01/22 08:02:46
解方程组3(x+y)-4(x-y)=4,x+y除以2+x-y除以6=1解方程组3(x+y)-4(x-y)=4,x+y除以2+x-y除以6=1解方程组3(x+y)-4(x-y)=4,x+y除以2+x-y
解方程组3(x+y)-4(x-y)=4,x+y除以2+x-y除以6=1
解方程组3(x+y)-4(x-y)=4,x+y除以2+x-y除以6=1
解方程组3(x+y)-4(x-y)=4,x+y除以2+x-y除以6=1
x+y除以2+x-y除以6=1?
3(x+y)-4(x-y)=4 …………①
（x+y）/2+（x-y）/6=1……②
把(x+y)、(x-y)分别看成一个整体。由②得
3(x+y)﹢(x-y)=6 …………③
又由③－①得
5(x－y)=2
x－y=2/5 …………………④
将④代入①得
3(x+y)-4×2/5=4
...
全部展开
3(x+y)-4(x-y)=4 …………①
（x+y）/2+（x-y）/6=1……②
把(x+y)、(x-y)分别看成一个整体。由②得
3(x+y)﹢(x-y)=6 …………③
又由③－①得
5(x－y)=2
x－y=2/5 …………………④
将④代入①得
3(x+y)-4×2/5=4
3(x+y)=4+8/5
3(x+y)=28/5
x+y=28/15………⑤
又④+⑤得
2x=34/15
x=17/15 …………⑥
将⑥代入⑤得
17/15+y=28/15
y=28/15-17/15
y=11/15
所以x=17/15
y=11/15
收起
解方程组：｛4x+5(x-y)=30,4y-3(x-y)=6
解方程组｛ 3x-4y(x-y)=3 { 2x-3y=1
解方程组x+y/3=x-y/4 2x+3y=11
解方程组3x+5(x+y)=2 3y-2(x+y)=4
解方程组,x+y/2=3x-2y=10+6x+y/4,
方程组4=x+y,8=3x-y求x,y的解
解二元一次方程组3(x+y)-4(x-y)=4 x+y/2+x-y/6=1
解方程组2(x-y)/3-x+y/4=-1 6(x-y)-4(2x-y)=16
解方程组3(x+y)-4(x-y)=4和(x+y)/2+(x-y)/6=1kkkkkkkk
3(x+y)—4(x-y)=4,(x+y/2)+(x-y/6)=1.解方程组
解方程组3(x+y)-4(x-y)=4,x+y除以2+x-y除以6=1
解方程组：2(x-y)/3-x+y/4=-1 ,6(x+y)-4(2x-y)=16
解方程组:2(x +y)-3(x-y)=3;4(x+ y)+ 3（x-y）=15
解方程组;x+y/2=x-y/3=6 4(x+y)-3(x-y)=-20
解方程组24/(x+y) +24/(x-y) = 7/3 ,8/(x+y) +18/(x-y) = 4/3
解方程组⑴(x+y)/2-(x-y)/3=6,⑵3(x+y)=4(x-y)
解方程组 x-y/3-x+y/4=2 x-y/6-x+y/8=3
解方程组4（x+y)-3(x-y)=14;(x+y)/2+(x+y)/3=6