5x-8y=o,则(x+3y)/(x-3y)=_______

5x-8y=o,则(x+3y)/(x-3y)=_______ 8x+3y+2=o,4x+5y+8=0 （x+y-5)*（x+y-5)+（x-y+3)=0 x*x-y*y 已知:3x-5y=0,求x/y,x-y/y,x-y/x 已知x/5=y/3,则(x/x+y)+(y/x-y)-(yxy/xxx-yxy) (x+y)/y=8/3则x/y=__ y/x-y=___ (x+y)/y=8/3则x/y=__ y/x-y=___ 若方程组4x-3y且x≠o,y≠o,则4x-5y/4x+5y的值是多少?急 X+Y-8X+10Y+41=O,求X/Y-Y/X的值 已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y) 已知X+4Y-3Z=0,4X-5Y+2Z=0,则X:Y:Z=___________?谢谢o(∩_∩)o 若5X-8Y=0,则X+3Y/X-3Y= (x+3)²+|y-3|=o (2x+y)²+(x+3y)(x-3y)-x(5x+8y)因式分解 已知x+2y-3x=0,2x+3y+5z=o.求x+y+z除以x-y+z 已知x,y,z满足方程组：4x-5y+2z=o;x+4y-3x=0,求x:y:z的值 2x²-3xy=y²=0（x,y不得o）求x/y+y/x 10-3x-7y-x+o.14=10-3x-7y-o.8这个方程怎么解