x+y=10;8x+6y=66
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x+y=10;8x+6y=66
【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2=
(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
y+y+x=10,x+y+x=8,y=?,x=?
X+Y-8X+10Y+41=O,求X/Y-Y/X的值
x,y 满足x(x-2)-y(y-6)=-10,求x,y的值
3(2X+Y)+(2(2x-Y)=6 (8X+4y)-(10X-5Y)=2
已知X*X+Y*Y+6X-8Y+25=0 求(Y/X)+(X/Y)-2=?
10(8y-x)=6(12y-x)=t(14y-x)t是多少
x*x+2x-y*y+6y-8=0,x+y不等于2,求x-y的值
求几个方程组的答案 {2x+y=2 {3x-y=7 x=?y=?{x+2y=50 {3x=2y+6 x=?y=?{x+y=40 {10x+8y=370 x、y=?{x+y=5.8 {y=3x+0.6 x=?y=?
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
X^2-Y^2+6X+10Y-30=0 X^2+Y^2-5X-8Y+21=0 X=?Y=?
(4x-2y-z)-{5x[8y-2y-(x+y)]-x+(3y-10z)]=? kuaihuajian
化简 x / y(x+y) - y / x(x+y) =
这道题真么做X Y 6 10 Y X如果(X+Y) (Y+X) =(X+6) ,且(X-Y)X+6(X-Y)=(X-Y) ,求X +Y 的值.
例X=1 y=21.X+Y=5 X-Y=15 2.2X+3Y=4 5X+6Y=7 3.X+3Y=5 3X+Y=-1 4.2X+Y=3 3X+5Y=11 5.4X+3Y=6 2X+Y=4 6.X+Y=180 X=3Y-10 7.3X-2Y=3 2X-Y=7 8.5X+3Y=7Y X+Y=45 9.3X+4Y=126X+8Y=24 X:6Y=1:4 10.X+Y=138 X-45=Y+53 11.X+Y=60 14Y=20X 12.2X+3Y=15.5 5X+6Y=35 13.X+Y=170 3