x+|2x+y|=10 解方程组{ x-2y=8

解方程组(x+y)(x-2y)=-5 (x-y)(x+2y)=7 x+|2x+y|=10 解方程组{ x-2y=8 解方程组2x+y+x=10 x+2y+z=-6 x+y+2z=8 解方程组X+Y/2=3X-2Y=10+6X+Y/4 解方程组:(x+3)(y-2)=(x-3)(y+10),(x+1)(y+3)=(x-2)(y+12) 解方程组 2x+y(y-2x)=9 (x+y)(x+y-3)=10 解方程组 x-y/3-x+y/4=2 x-y/6-x+y/8=3 解方程组:2/(x+y)+5/(x-y)=18 9/(x+y)-10/(y-x)=66 解方程组：2/(x+y)+5/(x-y)=18 9/(x+y)-10/(y-x)=66 解方程组 10（x-y)=3(x+y)+15 6(x+y)=4(2x-y)+16 2x+y=10 x+2y=8 解方程组, 解方程组:﹛2x-7y=8,3x-8y=10