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-2x>3 /:(-2)
x > - 3/2
x > - 1 1/2
g)1+2x < 4x + 5
2x-4x < 5 - 1
-2x < 4 /:(-2)
x < - 4/2
x < - 2
h) 6 -x > 2x
2x -x > -6
x < -6
i) 2 (x+1) < 4x
2x + 2 < 4x
2x-4x < 2
-2x < 2 /:(-2)
To równanie jest sprzeczne! x< 0 ?
-2x>4-1
-2x>3/(-2)
x<-1,5
g) 1+ 2x < 4x +5
2x-4x<5-1
-2x<4/(-2)
x>-2
h) 6-x > 2x
-x-2x>-6
-3x>-6/(-3)
x<2
l) 2(x+1) < 4x
2x+2<4x
2x-4x<-2
-2x<-2/(-2)
x>1