Odpowiedzi

2010-01-13T18:37:19+01:00
x+4:2-6>0
x+2-6>0
x>0+6-2
x>4

x-3:4<1
x-0.5<1
x<1+0.5
x<1.5

3x-1>-1.1+x
3x-x>-1.1+1
2x>0.1//:2
x=0.05


2010-01-13T18:43:58+01:00
A) o,3x - 1 > -1,1 + x /10
3x-1>-11+x / -x
2x-1>-11 /+1
2x>10 /:2
x=5

b) x-3 :4 < 1
x-3/4<1 /+3/4
x=1 3/4

c) x + 4 :2 - 6 > 0
x+2-6>0
x-4>0 /+4
x=4