若|3x-y-7|+(5x+2y-8)2=0,则x-y=______.
若|3x-y-7|+(5x+2y-8)2=0,则x-y=______.
若3x-4y=0,则x/y=______,(x-y)/y=______,(3x+2y)/(2x+3y)=_____.
若x+3y=3x+2y=7,则x=______,y=______.
若2x+3y-1=y-x-8=x+6,则2x-y=______.
若3x-5y=0,则x+y/x=(),x-y/y=(),2x-3y/2x+3y=( )
若|x+3|+(y-2)2=0,则x-2y=______.
若|y+2|+(x+5)2=0,则x-y=______.
若4x+3y+5=0,则3(8y-x)-5(x+6y-2)的值等于______.
已知(x+y+2)2+|2x-3y-1|=0,则x+y=______.
已知2x+3y=5,则6x-4y-2(x-5y)=______.
1.若3x-2y=0,则(x+y):(x-y)=______
若|x-y+2|与(x+y-1)2互为相反数,则x=______,y=______.