Помогите решить неравенства. Дам 18 баллов и отмечу лучшим.
1. 4(x+8)-7(x-1)<12
2. 5x-2(x-4)≥9x+23
3. 5-2x≤1-(x-2)
4. 3-x≤1-7(x+1)
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