y=3(x-y),x=2(x-y)求x,y的值
来源:学生作业帮助网 编辑:作业帮 时间:2024/10/03 17:12:23
xPN@[>D?
tP HbxLU]4i:s==G1r#{|g$k ("rTAL ۽miu08FWj]1FnŞ͍"·RaR)4609^]GsҬ>6ME+PϢhܖINOi\if]5HNJ;pjYu328R _>wd.6BۜsVS3xa
9"$FM%Y뢤~nu%z[`r- 8̓LK}pMD az!&|_
已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y)
已知x-y=3,求[(x+y)(x-y)-(x-y)^2+2y(x-y)]除以的值
已知:3x-5y=0,求x/y,x-y/y,x-y/x
已知3x =2y 求x/x+y+y/x-y-y²/x²-y²
若2/x-1/y=3,求[y/x-y/x-y(x-y/x-x+y)]/x-2y/x的值
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
已知|x|=2,|y|=3,|x+y|=-(x+y)求x-y
y=3(x-y),x=2(x-y)求x,y的值
(x-y)/(x+y)=3求( 3x-2y-1)/(x+y-5)
{(x+y)/2+(x-y)/3=1,(x+y)-5(x-y)=2.求x=?,y=?
x+y/2+ x-y/2=6 2(x+y)-3x+3y=24 求X Y
已知2y-x=-3,求[4y(2x-y)-2x(2x-y)]/(2x-y
已知:2x+y=6,x-3y=1 求7y(x-3y)(x-3y)-2(3y-x)(3y-x)
已知x-y=1,求[(x+2y)^2+(2x+y)(x-4y)-3(x+y)(x-y)]除以y的值大神们帮帮忙
已知x-y=1,求[(x+2y)²+(2x+y)(x-4y)-3(x+y)(x-y)]÷y的值
已知x=3分之一,y=-2分之一,求代数式x-(x+y)+(x+2Y)-(x+3y)+(x+4y)...-(x+2009y)
(x+y)(x-y)+(x-y)平方-(x-y)(3x-y) 其中x=-2 y=3分之一
(x-y) (x-2y)+(x+2y) (x-3y)-2(x-3y) (x-4y)=