3(x+1)+1/3(x-1)=2(x-1)+1/2(x+1)大神们帮帮忙
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3(x+1)+1/3(x-1)=2(x-1)+1/2(x+1)大神们帮帮忙3(x+1)+1/3(x-1)=2(x-1)+1/2(x+1)大神们帮帮忙3(x+1)+1/3(x-1)=2(x-1)+1/2
3(x+1)+1/3(x-1)=2(x-1)+1/2(x+1)大神们帮帮忙
3(x+1)+1/3(x-1)=2(x-1)+1/2(x+1)大神们帮帮忙
3(x+1)+1/3(x-1)=2(x-1)+1/2(x+1)大神们帮帮忙
两边乘以6得：18（X+1）+2（X-1）=12（X-1）+3（X+1） 所以有：15（X+1）=10（X-1） 即：3X+3=2X-1 解之得：X=-4
*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X ||
填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x
(X+1)X(X+2)X(X+3)=504
七年级下册政治复习提纲(山东人民出版社)第五单元是 青春的脚步 青春的气息别弄错了啊!格式：X X X X X X X X X 1、X X X X X X X X X X.2、X X X X X X X X X.3、X X X X X X X X X X X.
一个“整式的乘法”的问题请先阅读下列解题过程,再仿做下面的问题.已知X*X + X - 1=0,求X*X*X + 2*X*X + 3的值.解X*X*X + 2X*X +3=X*X*X +X*X -X +X*X +X +3=X{X*X +X -1} +X*X +X -1 +4=0+0+4=4+ x + X*X + X*X*X=0.+ X*X + X*X*X
(x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
x(x-2)-2x(x+1)-3x(x-5) 其中x=负½
x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x
请问这道题咋做 ：（x）X (x+1) X (x+2) X (x+3) =360
X+X+X+(X-1)+(X-2)+(X-3)+(X-4)=10(X-3)+(X-4)
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
x^4+x^3+x^2+x+1=0,x^2006+x^2005+x^2004+x^2003+x^2002
写过程x(x-1)+2x(x+1)-3x(2x-5)-x(3x-2)+2x(2-x)=-5x(x-2)-4
(x+1)/(x+2)+(x+8)/(x+9)解答x+1/x+2+x+8/x+9=x+2/x+3+x+7/x+8
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
x{x+1}{x-1}}x-2}{x-3}-40
|x+1|-|x|+|x-2|-|-x+3|已知x+2