作业帮0.4x-1/0.5-5-x/2
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/15 16:56:45
x}NA_#IMo$ eI xA
z1 GPw1,'^C\8Q_U?iɣ8xACdzx~Bjhkk&?!b
0.4x-1/0.5-5-x/2
0.4x-1/0.5-5-x/2
0.4x-1/0.5-5-x/2
(0.4x-1)/0.5-(5-x)/2≤(0.3-0.2x)/0.3-1
0.8x-2-2.5+0.5x≤1-2x/3-1
1.3x-4.5≤-2x/3
59/30x≤4.5
x≤135/59
分母的小数都化为分数
2（0.4X-1）-（5-X）/2≤10/3(0.3-0.2X)-1
等式两边同乘以分母的最小公倍数6
12（0.4X-1）-3（5-X）≤20（0.3-0.2X）-6
4.8X-12-15+3X≤6-4X-6
4.8X+4X+3X≤12+15
11.8X≤27
X≤135/59
进行分数化简
（13/10）X-9/2≤-(2/3)X---------通分-------（39/30）x-135/30≤-（20/30）x
两边同30得39X-135≤-20X------39X+20X≤135-------59X≤135------X≤135/59
*-----------------------------------------------*| 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
0.4x-1/0.5-5-x/2
0.4x-1/0.5-5-x/2
1、0.3X-0.4X=0.5 2、5X-2.5X+3.5X=-18 3、X-2/5X=-3+6解这些一元一次方程,
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
(x+2)(x-1)+(x+3)(x+1)=x·x-1 求x (5x-4)(2x+5)(3x-6)(2x-4)=(2x-4)(2x+5)·0.5 求x
x^5-x^4+x^3-x^2+x-1
x^6-x^5+x^4-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
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
12x-2/21x=快点9点之前还有7x-x+2/3x-3(4x-0.5)-2x+(3x-1)-(x+5)
如下9*9宫图如何填x x x 1 x x x 2 9x x 5 x x x x x 4x 6 8 x x x x x xx x x 7 x x 5 x xx 2 x x 6 x x 8 xx x 3 x x 9 x x xx x x x 5 x 1 6 x 4 x x x 3 x x x x 7 x x x x 2 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
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-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)
x-1分之x²+5x - x²-x分之2x²+4x