3/(X-Y)+10/(X+Y)=-5 2/(X-Y)-15/(X+Y)=1 解分式方程组
10/x+y+3/x-y=-5 15/x+y-2/x-y=-1(用换元法解此方程组)
解分式方程组:{x+15分之x-1=y+2分之y-6 {x分之x-3=1-y分之4-y
解方程组:(0.2x+0.1y)/2- (4x-y)/10=(x-y)/5+ (3x+0.5y)/30 (3x+2y-1
解方程组 10(x-y)=3(x+y)+15 6(x+y)=4(2x-y)+16
解方程组:(x+3)(y-2)=(x-3)(y+10),(x+1)(y+3)=(x-2)(y+12)
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)(x-2y)=-5 (x-y)(x+2y)=7
解方程组(1)2x-3y=10,-4x+y=5 (2)3x-2y=15,5x-4y=23
解方程组 x+y分之10+x-y分之3=-5 x+y分之15-x-y分之2=-1
解方程组:{x+|3x-y|+3y=15 2x+y=6
解方程组X+Y/2=3X-2Y=10+6X+Y/4
解方程组{ 3x-4y(x-y)=3 { 2x-3y=1