已知2x-3y=0则3x-y比x+2y=
1个回答
2x-3y=0
即2x=3y
x=3/2y
则
(3x-y)/(x+2y)
=(3*3/2y-y)/(3/2y+2y)
=(9/2y-y)/(3/2y+2y)
=(7/2y)/(7/2y)
=1
相关问题
已知|2X+3Y-1|+(3X+2Y-2)²=0,则X+Y=?
已知|2x-1+3y|+|3x+6-2y|=0则x+y=
已知|x-3|+(y+2)2=0,则x+y=______.
已知,(5x-4y)比(2x-3y)=3比4,则(x-y)比x=?
已知(x+y+2)2+|2x-3y-1|=0,则x+y=______.
已知|x+y-3|+(x-y)2=0则
已知:|2-x|+|y+3|=0,则x-y=______.
已知x:y=2:3,y:z=0.2:0.3,则x:y:z=?
已知2x^2-3xy-2y^2=0,则x+y/x-y=?