{4x=5y,3x=5(y-1)解方程组

1/2x-2y=-74,x-6y=-12解方程组,x／5-y／2=2,2x+3y=4解方程组 解方程组：｛4x+5(x-y)=30,4y-3(x-y)=6 解方程组3x+5(x+y)=2 3y-2(x+y)=4 解方程组:{x+y=3,x-y=5 3(x-y)+5(x-y)=19 4(x+y)-2(x-y)=-1解方程组是3（x+y) 解方程组{(x-2)(y+3)=(x+1)(y-1) {(x+1)(y+1)=(x-1)(y+5) 解方程组 X+Y/2+X-Y/3=6 4[X+Y]-5[X-Y]=2 解方程组 {3(x+y)-4(x-y)=11 {2(x-y)+5(x+y)=27 解二元一次方程组{x+y/2+x-y/3=6,4(x+y)-2=5(x-y) 解方程组2分之x+y+3分之x-y=6 4(x+y)-5(x-y)=2 解方程组 {3(x+y)-4(x-y)=11 {2(x-y)+5(x+y)=27全过程、快 解方程组 {(x+y)/2+(x-y)/3=6 5(x+y)-2(x-y)=4 3(x+y)+2(x-y)=36 4(x+y)-5(x-y)=2 解方程组 解方程组：x+y/2+x-y/3=6 4(x+y)-5(x-y)=12 解方程组 3(x+y)-2(x-y)=9,5(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 解方程组:{3(x+y)-2(x-y)=9,5(x+y)+2(x-y)=-1} 2+3x/5+4y=9,4+6y-y=1解方程组