若线段x ,y 满足[2x-3y]*[3x+2y]=0 则x/y=?怎样算出2x-3y=0或3x+2y=0 当2x-3y
若线段x ,y 满足[2x-3y]*[3x+2y]=0 则x/y=?怎样算出2x-3y=0或3x+2y=0 当2x-3y
若x,y满足|2x-y-3|+|3x+2y+1|=0,则x= y=
如果分式3x-6y/x+y=0,那么x,y 应满足 A、x=2y B、x≠-y C、x=2y且x≠-y D、x=2y且y
若3x-5y=0,则x+y/x=(),x-y/y=(),2x-3y/2x+3y=( )
设变量X,Y满足约束条件{X-Y+3>=0,X+Y>=0,-2
设实数X,Y满足2X+Y-2>=0,X-2Y+4>=0,3X-Y
若(x-y)/(x+y)=3 则(x+2y)/(6x-7y)等于
已知X-Y/X+Y=3,求代数式2(x-y)/X+Y-3X+Y/X+Y
已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y)
若变量x,y满足约束条件{x>=-1;y>=x;3x+2y
当x、y满足x>=0,y>=x,2x+y+k
若3x-4y=0,则x/y=______,(x-y)/y=______,(3x+2y)/(2x+3y)=_____.