1000×4x+1500×(108-5x)+2000x≤147000 解不等式,
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1000×4x+1500×(108-5x)+2000x≤147000 解不等式,
1000×4x+1500×(108-5x)+2000x≤147000 解不等式,
1000×4x+1500×(108-5x)+2000x≤147000 解不等式,
1000×4x+1500×(108-5x)+2000x≤147000
40x+15(108-5x)+20x≤1470
40x+1620-75x+20x≤1470
-15x≤-150
x≥10
*-----------------------------------------------*| 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 ||
x-3/4x=(108-x)-4/5x
1000×4x+1500×(108-5x)+2000x≤147000解一元一次不等式方程
1000×4x+1500×(108-5x)+2000x≤147000 解不等式,
通分x+4/x*x+4x与x-5/x(x-5)-2(x-5)
解方程1000*X^5-59(X^4+X^3+X^2+X)=1000
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
(x+3x+5x...+2009x)-(2x+4x+6x+...+2010x)
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
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
x/4-(108-x)/5=9
3x·x-5x-122x·x·x-x·x-4x+3x·x·x-6x-5x·x+6x+64x·x+12x+7
2x(5-4x)+5x(7-2x)=9x(8-2x)-108 的方程
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