3x+2y=44,2x+3y=46,x=?y=?3x+2y=44,2x+3y=46,x=?y=?
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/09 04:51:23
x)3651162t*l+mq$Ԅ_RΆB05Ov4<ٱi{?7,Y[ikk:
mJ[K&J[C;a*l
!VBXu)LF 1W0'HOv,ynvRzQNI
ۆ 0dz
(x-y) (x-2y)+(x+2y) (x-3y)-2(x-3y) (x-4y)=
(x+y)(x-y)+(x-y)平方-(x-y)(3x-y) 其中x=-2 y=3分之一
已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y)
(x+y)(2x-3y)=?
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
3^x+2x=y,x
3X+2Y=44,2X+3Y=46,X=( ),Y=( )
若2/x-1/y=3,求[y/x-y/x-y(x-y/x-x+y)]/x-2y/x的值
【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2=
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
{(x+2)^2-(y-3)^2=(x+y)(x-y) {x-3y=2
(3x-y)^2+(3x+y)(3x-y),x=1,y=-2
2(x+y)-3(x-y)=3 ,4(x+y)+3(x-y)=15
x+y/2+x-y/6=5 2(x+y)-3(x-y)=-2
x+y=-3 xy+x+y=-2 x/y+y/x=?
已知|x|=2,|y|=3,|x+y|=-(x+y)求x-y
x+y/2+x-y/3=6,4(x+y)-3(x-y)=-20