若3x+5y-3=0,则8^x·32^y=

若5X-8Y=0,则X+3Y/X-3Y= 若3x-5y=0,则x+y/x=（）,x-y/y=（）,2x-3y/2x+3y=( ) 若3x+5y-3=0,则8^x·32^y= （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 若x-y不等于0,2x-3y=0,则分式(10x-11y)/(x-y)的值是（）?(10x-11y)/(x-y) =[(8x-8y)+(2x-3y)]/(x-y) =8为什么8X-8Y=8？(10x-11y)/(x-y)=[(8x-8y)+(2x-3y)]/(x-y)=8+(2x-3y)]/(x-y)=8+0=8 (5)若x/2=y/3(y不为0）则x/y=____,x+y/y=___,y/x-y=___. 若|x+y-3|+(x-y-5)^2=0,则x)^2-y^2= 若3x=5y,则x:y=________,(x-y):y=______ 若2x-3y+4=0则x（x*x-1)+x(5-x*x)-6y+7 若|2x-y+5|+(x+2y-4)的平方=0,则（2x-y)的三次方-（x-3y)(y-2x)的平方 已知x.x+y.y-6x-8y+25=0,求3x.x+5y的值 若|3x-y-7|+(5x+2y-8)的二次方=0,则x-y=? (x+y)/y=8/3则x/y=__ y/x-y=___ (x+y)/y=8/3则x/y=__ y/x-y=___ 若x,y互为相反数（y≠0）,则2x+5+2y+3x/y=____ 若(x-y)/(x+y)=3 则(x+2y)/(6x-7y)等于 已知x/5=y/3,则(x/x+y)+(y/x-y)-(yxy/xxx-yxy)