x+2y=y-x/4=2y-1/3求x,y的值 要过程
来源:学生作业帮助网 编辑:作业帮 时间:2024/10/21 23:57:39
xݓN@_e`ٮnC瀣>!zٽQD1\9i]H'^aؚ9ٙi7¢K,TbTd;W %'E<ZҨ[:*r(4]!lfCogA/VV$F g%3fplppNfO;K8Z#qcke 1|͢u^5´Pg֗~kCnVECYՋFVɱ,bsƓkDBmvx5<
y\@b6<,jl'0hSD ulo?0Bݼ7uVX
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
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+y)=3求( 3x-2y-1)/(x+y-5)
已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y)
已知2y-x=-3,求[4y(2x-y)-2x(2x-y)]/(2x-y
{(x+y)/2+(x-y)/3=1,(x+y)-5(x-y)=2.求x=?,y=?
已知:2x+y=6,x-3y=1 求7y(x-3y)(x-3y)-2(3y-x)(3y-x)
已知:【(x²+y²)-(x-y)²+2y(x-y)】/4y=1,求4x/4x²-y²-1/2x+y
{3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1
已知x-y=3,求[(x+y)(x-y)-(x-y)^2+2y(x-y)]除以的值
已知3x =2y 求x/x+y+y/x-y-y²/x²-y²
2x+4y=3 -3x-2y=1 ..求x和y
4x-3y=5 x^2+y^2=1 求x,y
3x+4y-5=0 x^2+y^2=1求x.y
2^x=4^(y-1) 27^y=3^(x+1)求x-y
已知3x-4y/2x+y=1/2 求x/y的值
已知(3x-4y):(x+y)=1:2,求x:y的值