Odpowiedzi

2009-12-10T20:03:19+01:00
A) 2(x-1)+3x>3(x+2)+6
2x-2+3x>3x+6+6
2x>14
x>7
b) x-4-3(x-10)<x+6
x-4-3x+30<x+6
-3x<-20 ||:(-3)
x>6,33333
c)6x-2(x+1)<12
6x-2x-2<12
4x<14 ||:4
x<3,5
d)3(x-2)+4(x-2)>8
3x-6+4x-8>8
7x>22 ||:7
x>22/7 (to jest Pi :D)