{6x+6Y=120 6X+4y=10}等于多少?

(x+y)/6+(x-y)/10=1,(x+y)/6-(x-y)/10=5 {6/x+y+10/x-y=30 6/x+y-10/x-y=-1 {3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1 x+y/2+x-y/3=6,4(x+y)-3(x-y)=-20 {(x+y)/2+(x-y)/3=6 4(x+y)-3(x-y)=-20 4(x+y)-3(x-y)=-20,2/x+y+3/x-y=6 （x+y）/2- x-y/2=6 3(x+y)=4(x-y) x+y/3+x-y/2=6 4(x+y)-2(x-y)=40 x,y 满足x(x-2)-y(y-6)=-10,求x,y的值 x^2+4y^2-6x+4y+10=0,求x^4-y^4/(x+2y)(x-2y)*x+2y/xy^2+y^3除以（x^2+y^2/y)^2的值 x+y=10,6x+4y=46 解方程组 10（x-y)=3(x+y)+15 6(x+y)=4(2x-y)+1610（x-y)=3(x+y)+156(x+y)=4(2x-y)+16 解方程组 10（x-y)=3(x+y)+15 6(x+y)=4(2x-y)+1610（x-y)=3(x+y)+156(x+y)=4(2x-y)+16分开的。 2/x-y + 6/x+y = 11/10 分式方程组 4/x-y - 6/x+y =1/10 谁会解10x+y=6(x+y)+3 10y+x=4(x+y)+9 3(2X+Y)+(2(2x-Y)=6 (8X+4y)-(10X-5Y)=2 已知：4x^2+y^2-4x-6y+10=0,求y/x-x/y的值 解方程组,x+y/2=3x-2y=10+6x+y/4,