решите неравенство: помогите плизз
1) 3x- 1.8 <4.2
2) 2.5 + 3/8 x>x
3) 0.6x+7 < x + 9
4) 5/6 x - 1/4> x +0.75
1) 3x- 1.8 <4.2
2) 2.5 + 3/8 x>x
3) 0.6x+7 < x + 9
4) 5/6 x - 1/4> x +0.75
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Answers & Comments
3x<6
x<2
2) 3/8x - x >-2.5
-5/8x > - 2.5
x>4
3) 0.6x-x < 9-7
-2/5x<2
x<-5
4)5/6x - x> 0.75+1/4
-1/6x> 1
x>- 6