Ответы и объяснения

2013-10-27T22:52:12+04:00
3(3x-1)>2(5x-7)         5(x+4)<2(4x-5)       2(x-7)-5x<_3x-119x-3>10x-14              5x+20<8x-10           2x-14-5x-3x+11<_09x-10x-3+14>0           5x-8x+20+10<0       -6x-3<_0-x+11>0                     -3x+30<0                -6x<_3-x>-11                       -3x<-30                  x>_-0.5x<11                          x>10(-бесконечность;11)   (10;+бескон)         [-0.5;+beskon) 2x+4(2x-3)>_12x-11       x-4(x-3)<3-6x2x+8x-12-12x+11>_0      x-4x+12-3+6x<0-2x-1>_0                       3x+9<0-2x>_1                          3x<-9x<_-0.5                         x<-3(-beskon;-0.5)              (-beskon;-3) 
2013-10-27T22:52:47+04:00
-8х + 15+50х ≥ -2х -3
-8х + 50х + 2х 
≥ -3 - 15
44х 
≥ -18
х 
≥ -3