(3x÷5.5)+[(3x-80)÷5.5]=x求解

化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x [x^2+2x-8/x^3+2x^2+x]÷[(x-2/x)×(x+4/x+1)]化简[x^2+2x-8/x^3+2x^2+x]÷[(x-2/x)×(x+4/x+1)]化简 (x^2-x-6)÷(x-3) 化简 [3x/(x+2)-x/(x=2)]÷x/(x^2-4)化简 [3x/(x+2)-x/(x-2)]÷x/(x^2-4 3x/(x-2)-x/(x+2)÷2x/(x-4)化简3x/（x-2）-x/(x+2)÷2x/(x²-4)化简 (x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3 化简：2|x| -3x÷|2x-|5x|| 化简||x|-2x|÷(|x-3|-|x|) X×X－3X＋1=0求分式X×X÷〈X×X×X×X+3X×X+1〉 (2x-6)/(x²-4x+4)÷(3-x)/(x²+6x+9)×(2-x)/(x+3) X^2-3X-2=0,求( x - 2x-1/x )÷(x-1)/(x^2-2x) 数学题x-15/x^2-9-2x/9-x^2÷x/3+x 化简 （3x/x-1 -x/x+1）÷x/x²-1 求解 化简(3x/x-2-x/x+2)÷2x/x平方-4 (3x÷5.5)+[(3x-80)÷5.5]=x求解 数学-化简求值难题(1)化简求值:(X+2/X^2-2X - X-1/X^2-4X+4) ÷ X^2-16/X^2+4X,其中X=2+根号2.(2)化简求值:(3X/X+2 - X/X-2)+ 2X/X^2-4.其中X=4-根号5. x^2-x/x+1÷x/x+1 ；x^2+6x+9/x^2-9÷x+2/x-3；2/a÷4/a x(2-1/x)+x/(x^2-2x)÷(3-x)/(x^2-4)2.2/3+x/(3x-1)=1/9x-3