3x-y=10

(x+y)(x+y-10)+25=0,且x-y=3,求x,y(x+y)(x+y-10)+25=0,且x-y=3,求x,y(x+y)(x+y-10)+25=0,且x-y=3,求x,y怎么把代数问题发到这啦?我试着解答一下.由题得：(x+y)(

(x+y)(x+y-10)+25=0,且x-y=3,求x,y(x+y)(x+y-10)+25=0,且x-y=3,求x,y(x+y)(x+y-10)+25=0,且x-y=3,求x,y因为：(x+y)(x+y-10)+25=0,所以：(x+y)

若[-3(x+y)^m*(x-y)^2n]^2*[-(x+y)^2]=-a(x+y)^10*(x-y)^12-n,求m,n的值若[-3(x+y)^m*(x-y)^2n]^2*[-(x+y)^2]=-a(x+y)^10*(x-y)^12-n,

若[-3(x+y)^m*(x-y)^2n]^2*[-(x+y)^2]=-a(x+y)^10*(x-y)^12-n,求m,n的值.别复制粘贴若[-3(x+y)^m*(x-y)^2n]^2*[-(x+y)^2]=-a(x+y)^10*(x-y)

(4x-2y-z)-{5x[8y-2y-(x+y)]-x+(3y-10z)]=?kuaihuajian(4x-2y-z)-{5x[8y-2y-(x+y)]-x+(3y-10z)]=?kuaihuajian(4x-2y-z)-{5x[8y-2

解方程组x+y/6+x-y/10=3,x+y/6+y-x/10=-1x+y/6+x-y/10=3①x+y/6+y-x/10=-1②解方程组x+y/6+x-y/10=3,x+y/6+y-x/10=-1x+y/6+x-y/10=3①x+y/6+

5x+10=5y4x+4y=8要求x、y2.结算：（2x-3y)^2-(y+3x)(3x-y)利用乘法公式计算和分解因式5x+10=5y4x+4y=8要求x、y2.结算：（2x-3y)^2-(y+3x)(3x-y)利用乘法公式计算和分解因式

3x+x+4y+(90+10)x=3y-(2x+y)+510y=34x3x+x+4y+(90+10)x=3y-(2x+y)+510y=34x3x+x+4y+(90+10)x=3y-(2x+y)+510y=34xx=3

1.5（x+y）+3（x-y）=27（x+y）-3（x-y）=-62.x-y/7-x+y/10=1/22(x-y)-5(x+y)=3所谓细节决定成败,1.5（x+y）+3（x-y）=27（x+y）-3（x-y）=-62.x-y/7-x+y/

已知XY.Y=-3,求-XY(X.X.X.Y.Y.Y.Y.Y.Y.Y-3.X.X.Y.Y.Y.Y.Y-Y)的值.（过程完整）已知XY.Y=-3,求-XY(X.X.X.Y.Y.Y.Y.Y.Y.Y-3.X.X.Y.Y.Y.Y.Y-Y)的值.（过

（x+y-5)*（x+y-5)+（x-y+3)=0x*x-y*y（x+y-5)*（x+y-5)+（x-y+3)=0x*x-y*y（x+y-5)*（x+y-5)+（x-y+3)=0x*x-y*y这是什么题目?用比较直接的方法吧由题意知x+y=

已知:3x-5y=0,求x/y,x-y/y,x-y/x已知:3x-5y=0,求x/y,x-y/y,x-y/x已知:3x-5y=0,求x/y,x-y/y,x-y/x3x-5y=03x=5y→x/y=5/3y/x=3/5（x-y）/y=x/y-

2x+4y=10X*y=32x+4y=10X*y=32x+4y=10X*y=3x*y=3那么x=3/y带入上式2x+4y=10中即可求出x,y的值,

x=3/5yx-10=55%yx=3/5yx-10=55%yx=3/5yx-10=55%y将x=3/5y代入x-10=55%y得：0.6y-10=0.55y0.05y=10y=200将y=200代入x=3/5y得：x=12055％=11/2

3x=y,x-10=y-603x=y,x-10=y-603x=y,x-10=y-60X=25Y=75请及时采纳,（点击我的答案下面的【满意答案】图标）是我前进的动力!你的采纳也会给你带去财富值的.如有不明白,直到完成弄懂此题!如还有新的问题

5x=10yx+y=35x=10yx+y=35x=10yx+y=3此方程组的解x=1y=2

(X+y)平方-3(x+y)-10=?(X+y)平方-3(x+y)-10=?(X+y)平方-3(x+y)-10=?

化简：3（x+y）+5=10y+x化简：3（x+y）+5=10y+x化简：3（x+y）+5=10y+x3(x+y)+5=10y+x3x+3y+5=10y+x2x+3y+5=10y2x+5=7y

[（2x+3y）²-（y+2x）（2x-y）-10y（x+y+1）÷2y其中x=2019,y=20[（2x+3y）²-（y+2x）（2x-y）-10y（x+y+1）÷2y其中x=2019,y=20[（2x+3y）

推倒公式:(x+y)(x*x-3x+y*y)=x*x*x+y*y*y怎么做.推倒公式:(x+y)(x*x-3x+y*y)=x*x*x+y*y*y怎么做.推倒公式:(x+y)(x*x-3x+y*y)=x*x*x+y*y*y怎么做.-3x应为-