Răspunsuri

2014-11-14T20:29:03+02:00
3x+5>3(x+2) 
3x+5>3x+6
3x-3x>6-5
0x>1 ( ecuatie falsa )
4x+7<2(2x+5)
4x+7<4x+10
4x-4x<10-7
0x<3 ( ecuatie falsa )
7x+41<2(3x+11) 
7x+41<6x+22
7x-6x<-41+22
x<-19
18+10x>5(x+2)+2(x+3)
18+10x>5x+10+2x+6
10x-5x-2x>10+6-18
5x-2x>16-18
3x>-2
  x>- \frac{2}{3}