(1)x-2x-1/3=x-1/2 (2)3x+1/2 - 3x-2/10=2- 2x+3/5(3) x+1/0.3 - 2x - 1/0.7=0 (4)2[4/3x-(2x/3 - 1/2)]=5/4x

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(1)x-2x-1/3=x-1/2 (2)3x+1/2 - 3x-2/10=2- 2x+3/5(3) x+1/0.3 - 2x - 1/0.7=0 (4)2[4/3x-(2x/3 - 1/2)]=5/4x

(1)x-2x-1/3=x-1/2 (2)3x+1/2 - 3x-2/10=2- 2x+3/5(3) x+1/0.3 - 2x - 1/0.7=0 (4)2[4/3x-(2x/3 - 1/2)]=5/4x
(1)x-2x-1/3=x-1/2 (2)3x+1/2 - 3x-2/10=2- 2x+3/5
(3) x+1/0.3 - 2x - 1/0.7=0 (4)2[4/3x-(2x/3 - 1/2)]=5/4x

(1)x-2x-1/3=x-1/2 (2)3x+1/2 - 3x-2/10=2- 2x+3/5(3) x+1/0.3 - 2x - 1/0.7=0 (4)2[4/3x-(2x/3 - 1/2)]=5/4x
1、 x-2x-1/3=x-1/2
x-2x-x=1/3-1/2
-2x=-1/6
x=1/12
2、3x+1/2 - 3x-2/10=2- 2x+3/5
3x-3x+2x=2+3/5-1/2+2/10
2x=23/10
x=23/20
3、x+1/0.3 - 2x - 1/0.7=0
x-2x=1/0.7-1/0.3
-x=10/7-10/3
-x=-40/21
x=40/21
4、2[4/3x-(2x/3 - 1/2)]=5/4x
两边同时除以2
4/3x-(2x/3 - 1/2)=5x/8
4x/3-2x/3+1/2=5x/8
2x/3-5x/8=-1/2
同时乘以24
16x-15x=-12
x=-12

3X-2=2X+1
X=3=M
30M+10=30*3+10=100

*-----------------------------------------------*| 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 || 请问这道题咋做 :(x)X (x+1) X (x+2) X (x+3) =360 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 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. (X+1)X(X+2)X(X+3)=504 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 解九宫格题目(X为未知数)9 X 2 X 7 X 8 X XX X 4 X X 9 X 6 X1 3 X 5 X X X X 24 X X 8 5 X X 1 XX 8 9 4 X 1 6 7 XX 1 X X 3 6 X X 88 X X X X 2 X 3 6X 5 X 6 X X 9 X XX X 7 X 4 X 2 X 1 (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 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-3分之x-1-x分之x-4)除以x的平方+3x分之(x+3)(x-2),其中(x-1)(x-2)=0 (1)(2x/x-1)-(x-1/x)=1 (2)(x^2-4x/x^2-1)+1=2x/x+1 (3)(x+4/x^2+2x)-(1/x+2)=(2/x)+1