4(3x-1)<5(2x+1) x-2/3<等于2-x 1-x/3<等于1-2x/7 1-4x-3/2>等于5/6-4/3x 解下列不等式,并把它们的解集分别表示在数轴上

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4(3x-1)<5(2x+1) x-2/3<等于2-x 1-x/3<等于1-2x/7 1-4x-3/2>等于5/6-4/3x 解下列不等式,并把它们的解集分别表示在数轴上
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4(3x-1)<5(2x+1) x-2/3<等于2-x 1-x/3<等于1-2x/7 1-4x-3/2>等于5/6-4/3x 解下列不等式,并把它们的解集分别表示在数轴上
4(3x-1)<5(2x+1) x-2/3<等于2-x 1-x/3<等于1-2x/7 1-4x-3/2>等于5/6-4/3x 解下列不等式,并把它
们的解集分别表示在数轴上

4(3x-1)<5(2x+1) x-2/3<等于2-x 1-x/3<等于1-2x/7 1-4x-3/2>等于5/6-4/3x 解下列不等式,并把它们的解集分别表示在数轴上

(1)4(3x-1)<5(2x+1)
12x-4<10x+5
12x-10x<5+4
2x<9
∴x<9/2.
(2)x-2/3≤2-x
3x-2≤6-3x
6x≤8
x≤3/4.
(3)(1-x)/3≤(1-2x)/7
7(1-x)≤3(1-2x)
7-7x≤3-6x
7x-6x≥7-3
x≥4.
(4)1-4x-3/2≥5/6-4x/3
6-24x-9≥5-8x
24x-8x≤6-9-5
16x≤-8
x≤-1/2

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 *-----------------------------------------------*| 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 || 计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1 x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4 解下列方程!就三道!解下列方程.1、x/x-2 - 1-x²/x²-5x = 2x/x-3(x/x-2 - 1-x²不是一起的!)2、5x/x²+x-6 - 5-2x/x²-x-12=7x-10/x²-6x+8(5x/x²+x-6 - 5-2x不是一起的!)3、x-4/x-5 + x-8/x-9=x-7/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+5/x+1-3x-3/x+5=8x+28/x^2+4X-5-2(x+5)/(x+1)-(3x-3)/(x+5)=(8x+28)/(x^2+4X-5)-2 x^5-x^4+x^3-x^2+x-1 求一个数独答案X X X 9 X X X 8 2 X 6 3 X X 1 4 X 99 X 8 X X X X X XX X X 6 7 X 3 X XX 4 6 X 5 X 2 9 XX X 7 X 2 3 X X XX X X X X X 7 X 17 X 4 3 X X 6 2 X6 3 X X X 7 X X X (x-1)^3(x+1)(x-2)/(x+4) 1.(x^3-x^2-4x+1)/(x^2-3x+2)-(x^3-2x^2-9x+21)/(x^2-5x+6)+(x^2-3x+8)/(x^2-4x+3)2.{(x^2)/(x-y)}*{y/(x+y)}-{(x^4y)/(x^4-y^4)}÷{(x^2/x^2+y^2)^2} (x+2)(x-2)+16 (x-1)(x-2)+3x(x+3)-4(x+2)(x-3)(x+2)(x-2)+16 (x-1)(x-2)+3x(x+3)-4(x+2)(x-3) EXCEL两表间同时满足两个条件数据引用如题:表1为原始数据表1 2 3 4 5 6 7 8 9 10.A X X X X X X X X X XB X X X X X X X X X XC X X X X X X X X X XD X X X X X X X X X X .表2(A列) (B列) (C列)A 1A 3B 8B 5C 2D 3...... (x+1)(x+2)(x+3)(x+4)+1(x+1)(x-2)(x+3)(x-4)+25 难倒爱因斯坦的九宫格X 7 X | X 8 1 | X X X |X X X | X 4 X | 7 5 9 |X X 5 | 7 X 9 | X 1 4 |5 X X | X X 8 | 3 9 X |3 9 6 | 4 X 7 | X X 2 |X 8 7 | 9 X X | X X X |4 X X | 6 X 5 | X X X | X X 4 | X X 1 |2 X X | X X X | X X X | X 3 X | X X X |X 6 x(x^2-1)+2x^2 *(x+1)-3x*(2x-5)=x(3x^2-4x)-28 (8-7x-6x²+2x³)+(x³+5x²+4x-1)-(-x²-3x+2x³-3) x(x平方-1)+2X平方(X+1)-3X(2X-5)帮个忙