помогите плиз)))→→→Запишите в виде неравенства с модулями двойное неравенство:
1). -7《 Х+1,3《7
2). -9《3,5-Х《9
3). -19 целых 2\7 < 6-5x < 19 целых 2\7
4) -24,7<10 целых 1\5 -2,1x <24,7
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