x/3=y/2 10%x-7%y=1%解下列方程组x/3=y/210%x-7%y=1%

x-y/7 - x+y/10 =1/2 2(x-y)-5(x+y)=3修改、、、、（x-y)/7-(x+y)/10=1/2 2(x-y)-5(x+y)=3 解方程组:(x+3)(y-2)=(x-3)(y+10),(x+1)(y+3)=(x-2)(y+12) 解方程：（x+3)(y-2)=(x-3)(y+10) (x-1)(y+3)=(x+2)(y+12) 2(x+y)-3(x-y)=1 6(x+y)+7(x-y)=51 解方程组 解方程组﹛2(x+y)-3(x-y)=1 6(x+y)+7(x-y)=51 { x-y/7-x+y/10=1/2 {2(x-y)+5(x+y)=3 { x-y/7-x+y/10=1/2 {2(x-y)+5(x+y)=3 解分式方程：10/(x+y)+3/(x-y)=-5,15/(x+y)-2/(x-y)=-1 3/(X-Y)+10/(X+Y)=-5 2/(X-Y)-15/(X+Y)=1 解分式方程组 已知：2x+y=6,x-3y=1 求7y(x-3y)(x-3y)-2(3y-x)(3y-x) 2/5x+2/3y=-10 ① x/3-y/9=1 ② 解方程组 x-y/5-x+y/2=-1/10① x-y/7-x+y/6=1/2② x+y=1 5x-2y=8 3x-y=7 2x-y=3x表示y和用y表示x 解二元一次方程组：3(x+y)-4(x-y)=4,x+y/2+x-y/6+1x+y/2+x-y/6+1=1 x-y/x+y=-1/2,x*x-xy-2y*y/x*x-3xy+2y*y的解是多少?同上,请将过程写出, 若2/x-1/y=3,求[y/x-y/x-y(x-y/x-x+y)]/x-2y/x的值 代入法解方程组(1)2y-8=-x (2)x-y=5 (3)2x+3y=7 (4)y=x+1 4x+3y=10 4x+3y=7 3x-6y=0 3x+4y=11 (5)y=x+1 3x+4y=11(6) x-5y=03x+2y=17记得详细一点.. {4x-3y-10=0 3x-2y=0,{3x-4(x-y)=2 2x-3y=1,{2(x+y)-(x-y)=3 (x+y)-2(x-y)=1 2x-5+y/3=x+3y/4+7与10(x-y)-4(1-x)/3-y=0 求方程组的解