Rozwiąż równania :
1) 12(x-0,5) > 6 (2x-1) + 5 =
2) 18 (x+1) - 10 (0,5x +2) >5x - 2 =
3) -3 (x+1) + x <-2 (x-1) =
1)
12(x-0,5) > 6 (2x-1) + 5
12x-6>12x-6+5
12x-12x>-1+6
0≠5
2)
18 (x+1) - 10 (0,5x +2) >5x - 2
18x+18-5x-20>5x-2
13x-5x>-2-18+20
8x>0
x>0
3)
-3 (x+1) + x <-2 (x-1)
-3x-3+x<-2x+2
-2x+2x<2+3
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1)
12(x-0,5) > 6 (2x-1) + 5
12x-6>12x-6+5
12x-12x>-1+6
0≠5
2)
18 (x+1) - 10 (0,5x +2) >5x - 2
18x+18-5x-20>5x-2
13x-5x>-2-18+20
8x>0
x>0
3)
-3 (x+1) + x <-2 (x-1)
-3x-3+x<-2x+2
-2x+2x<2+3
0≠5