5x-2>3(x+1) 2分之x-1≤7-2分之3x

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5x-2>3(x+1)2分之x-1≤7-2分之3x5x-2>3(x+1)2分之x-1≤7-2分之3x5x-2>3(x+1)2分之x-1≤7-2分之3x(1)5x-2>3(x+1),解得x>5/2(2)

5x-2>3(x+1) 2分之x-1≤7-2分之3x
5x-2>3(x+1) 2分之x-1≤7-2分之3x

5x-2>3(x+1) 2分之x-1≤7-2分之3x
(1)5x-2>3(x+1),解得 x>5/2
(2)(x-1)/2≤3x/(7-2)
( x-1)/2≤3x/(7-2)+ 3/(7-2)-3/(7-2)
( x-1)/2≤3(x-1)/(7-2)+ 3/5
( x-1)(1/2-3/5)≤3/5
解得 x≥-5
最后就可以得出x＞ 5/2

5x-2>3(x+1) 2分之x-1≤7-2分之3x (X+1)(X+3)分之2+(X+3)(X+5)分之2+(X+5)(X+7)分之2+(X+7)(X+9)分之2的值是多少 x+2分之x+1+(x+7分之x+6)= x+3分之x+2 +(x+6分之x+5)急解方程x+2分之x+1-x+3分之x+2=x+6分之x+5-x+7分之x+6 解方程x+2分之x+1-x+3分之x+2=x+6分之x+5-x+7分之x+6 计算:[x+2分之x+1]+[x+7分之x+6]=[x+3分之x+2]-[x+6分之x+5]谢谢解方程：x+1分之x+2-x+3分之x+4=x+5分之x+6-x+7分之x+8 x+1分之x+2减去x+3分之x+4=x+5分之x+6减去X+7分之x+8 （解方程）方程：x+1分之x+2-x+3分之x+4=x+5分之x+6-x+7分之x+8 [(x+3分之x+2)-(x+2分之x+1)+(x+5分之x+4)-(x+4分之x+3)]除以[(x平方+8x+15)分之(x平方+7x+13)] *-----------------------------------------------*| 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 || 1.解方程：2x-1分之x-1 + 1-2x分之5x-8= - 3 2.1-x分之3-x - 7-x分之5-x =1 - x²-8x+7分之x²-2 x^2-3x+2分之3x-7 + x^2-x-2分之2x-1 - x^2-1分之5x 的分式约分谢谢填九宫格帮帮忙.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+2)分之(x+1)-(x+7)分之1=（x+3)分之（x+2)-(x+6)分之1 x-2-x分之3 分之 1+x分之6 +x^2分之5 1-三分之x≥二分之x+5x- 3（x+2）≤四分之x X²-3X分之5X-7=X-1分之2+X-2分之3 解分式方程