5X+8Y=3Y+6X
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5X+8Y=3Y+6X
5X+8Y=3Y+6X 5X-6X=3Y-8Y -1X=-5Y X=5Y 只能求出一个比值,具体数字从你讲的条件中无法得知!
[2(x-y)^5-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2[2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2]÷2(x-y)^2
已知x.x+y.y-6x-8y+25=0,求3x.x+5y的值
【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2=
{x+y=1 ,xy=-6{x(2x-3)=0,y=x²-1{(3x+4y-3)(3x+4y+3)=0,3x+2y=5{(x-y+2)(x+y)=0,x²+y²=8{(x+y)((x+y-1)=0,(x-y)(x-y-1)=0
(3x-4y)(5x-4y)-(7x-8y)(6y-5x)
x+y/2+x-y/6=5 2(x+y)-3(x-y)=-2
6(x-y)-2(x+y)=14 3(x-y)+(x+y)=5
5X+8Y=3Y+6X
填空题 x+y/4=x-y/6=3x+12y+5/8 x= y=
3(2X+Y)+(2(2x-Y)=6 (8X+4y)-(10X-5Y)=2
{6x+5y=8,3x=2y-5x=y=
6x-2y=5 8x-3y=-5 求x,y
(x+y-5)*(x+y-5)+(x-y+3)=0 x*x-y*y
已知:3x-5y=0,求x/y,x-y/y,x-y/x
3x+2=y 5x+4=y 7x+6=y 9x+8=y 11x=y 联立方程 有的话
3x+2=y 5x+4=y 7x+6=y 9x+8=y 11x=y
3x+2=y 5X+4=Y 7X+6=Y 9X+8=y 11x=y要如何计算
3x+2=y 5x+4=y 7x+6=y 9x+8=y 11x=y怎么解