x-1/x-5＝2/x-5＋1

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x＋2/x＋1＝5/x－1/x(x＋1)求化简!x＋2/x＋1＝5/x－1/x(x＋1)求化简! x＋2/x＋1＝5/x－1/x(x＋1)求化简!稍等

x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4(x+2)/(

x^5-x^4+x^3-x^2+x-1x^5-x^4+x^3-x^2+x-1x^5-x^4+x^3-x^2+x-1x^5-x^4+x^3-x^2+x-1　　=x^4(x-1)+x^2(x-1)+(x-

x^6-x^5+x^4-x^2+x-1x^6-x^5+x^4-x^2+x-1x^6-x^5+x^4-x^2+x-1x^6-x^5+x^4-x²+x-1=x^5(x-1)+x^²(x

求一个数独答案XXX9XXX82X63XX14X99X8XXXXXXXXX67X3XXX46X5X29XXX7X23XXXXXXXXX7X17X43XX62X63XXX7XXX求一个数独答案XXX9X

难倒爱因斯坦的九宫格X7X|X81|XXX|XXX|X4X|759|XX5|7X9|X14|5XX|XX8|39X|396|4X7|XX2|X87|9XX|XXX|4XX|6X5|XXX|XX4|XX

如下9*9宫图如何填xxx1xxx29xx5xxxxx4x68xxxxxxxxx7xx5xxx2xx6xx8xxx3xx9xxxxxxx5x16x4xxx3xxxx7xxxx2xxx如下9*9宫图如何

解九宫格题目（X为未知数）9X2X7X8XXXX4XX9X6X13X5XXXX24XX85XX1XX894X167XX1XX36XX88XXXX2X36X5X6XX9XXXX7X4X2X1解九宫格题目

解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+

x(x-2)-2x(x+1)-3x(x-5)其中x=负½x(x-2)-2x(x+1)-3x(x-5)其中x=负½x(x-2)-2x(x+1)-3x(x-5)其中x=负½x

(x-3/x-2)-(x-2/x-1)=(x-5/x4)-(x-4/x-3)(x-3/x-2)-(x-2/x-1)=(x-5/x4)-(x-4/x-3)(x-3/x-2)-(x-2/x-1)=(x-5

x-1分之x²+5x-x²-x分之2x²+4xx-1分之x²+5x-x²-x分之2x²+4xx-1分之x²+5x-x²-

x(x+1)+(x+2)+(x+3)+(x+4)+(x+5)=27求xx(x+1)+(x+2)+(x+3)+(x+4)+(x+5)=27求xx(x+1)+(x+2)+(x+3)+(x+4)+(x+5)

f(x,-x)=x^2+2x,fx(x,-x)=5x+1,则fy(x,-x)=f(x,-x)=x^2+2x,fx(x,-x)=5x+1,则fy(x,-x)=f(x,-x)=x^2+2x,fx(x,-x

x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7x=?x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7x=?x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7x

5x(3x-2)-(x+1)5x(3x-2)-(x+1)5x(3x-2)-(x+1)①=15x²-10x-x-1=15x²-11x-1②=15x-10-x-1=14x-11①是5x

(5x+1)X(6x+2)..(5x+1)X(6x+2)..(5x+1)X(6x+2)..解什么啊,就不是方程化简？(5x+1)X(6x+2)=30x+10x+6x+2=46x+2

写过程x(x-1)+2x(x+1)-3x(2x-5)-x(3x-2)+2x(2-x)=-5x(x-2)-4写过程x(x-1)+2x(x+1)-3x(2x-5)-x(3x-2)+2x(2-x)=-5x(