2x-2-3x+12大于等于-12
2x+y大于等于12,2x+9y小于等于36,2x+3y大于等于24,x大于等于0,y大于等于0
3x-7/5大于等于x-2/2,x/4-2x-1/12大于1/6-x/3
(2x+1)(x-3)-(2x+3)(x-1)大于等于12的解
x-3(x-2)大于等于4
(1)2x-2-3x 12大于等于-12 (2)2x 2-3x 3大于等于x-2
(1)x+7>9 (2)-2x大于或等于3 (3)-4x+12
2(x+5)^2-(x+6)^2-(x+2)(x-2)=42 (2x+1)(x-3)-(2x+3)(x-1)大于等于12
已知集合A={x|3大于等于X大于等于7},B={X|2
设x,y满足约束条件x大于等于0,y大于等于x,4x+3y小于等于12,则x+2y+3\x+1取值范围是
2x-1/3-3x-1/2大于等于5/12
解不等式,2X-1/3-3X-1/2大于或等于5/12
求同时满足4x-2(12-x)小于等于32和2x+1/3 - 1-x/2大于等于1的整数x