若x>3,化简丨x-1丨+丨3-x丨.

若根号（x-3）=x-3,化简丨3-x丨-丨x-1丨 若x＜0,化简丨x-3丨－丨x丨／丨丨x丨-2x丨. 已知函数f(x)=丨x-3丨,若不等式f(x-1)+f(x) 若x>3,化简丨x-1丨+丨3-x丨. 设丨x丨＜3,且x＞1/x,若x为整数,则x等于【】 丨(x-3)/(x-1)丨 化简丨3x+1丨+丨2x-1丨 化简丨2x-1丨+丨x-3丨 1 化简丨x+1丨+丨x+3丨, 已知x满足不等式3（4x+2)+6＜3x-7(x+1),化简丨1+x丨-丨1-4x丨. 若不等式丨x-3丨+丨x+1丨 化简丨3-x丨；丨x+1丨+丨x+2丨 *-----------------------------------------------*| 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 || 丨x^2-3x+2丨≤0丨x/x+1丨＞x/x+1丨1/2-x丨≥2 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 化简丨3x+1丨-丨1-3x丨,x 当1＜x＜3时,化简丨x-3丨+丨x-1丨/2 求 已知根号2X-6有意义,化简丨X-1丨+丨3-X丨