1.化简:|x-5| - |2x-13| ( x>5 )

1.化简:|x-5| - |2x-13| ( x>5 ) 1.若x>5时,化简|x-5|-|2x-13| 2.|3x-2|+|2x+3| 3.||x-1|-3|+|3x+1| 化简：x-2x+3x-4x+5x-.+2011x-2002x 化简:X-2X+3X-4X+5X-……+2001x-2002x 当x>5时,化简：[x-5]-[2x-13] 化简|x-5|-|2x-13| 已知,x满足3+3x＞5x-1 (x+1)/4 > -1.化简：|x-2|+|x+5|. 计算:[(x+2)/(x+3) - (x+1)/(x+2) + (x+4)/(x+5) - (x+3)/(x+4) / (x^2 + 7x + 13)/(x^2 + 8x + 15) [(x+2)/(x+3)-(x+1)/(x+2)+(x+4)/(x+5)-(x+3)/(x+4)]/[(x的平方+7x+13)/(x的平方+8x+15)] 计算：1.（x-3y)(-6x) 化简：1.x(x-1)+2x(x+1)-3x(2x-5) *-----------------------------------------------*| 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 || 几道初中数学题..要有过程 注：x^2 表示x的2次方1.化简：(9x^2+3x)/(x^2+6x+9) * (x^3+27)/(x^2-3x) ÷ (x^2-3x+9)/(x^2-9)2.化简x - x÷{(x^2-y^2)/(x^3+y^3) * [(x-(x^2+y^2)/y ) ÷ (1/x - 1/y)3.化简分式： (x^3 + 5x^2 + 3x - 9)/(x^3 化简|2x-|5x||分之2|x|-3x 化简：2|x| -3x÷|2x-|5x|| 化简9x-{4x-[5x-(8x-2)]} 化简1.|x-3|+2|x| 2.|x-1|+|x-2|+...|x-5|化简1.|x-3|+2|x| 2.|x-1|+|x-2|+...|x-5| 3.|3+|2-|x+1|||求过程 |2-x|-|x+5|化简 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