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-6-1=-2x+3x
-7=5x /:-7
x = 5/7
2. 7x - 1 < 6
7x<1+6/:7
x<1
3. -3x ≤ 21/-3
x≥7
4. 3 (2x + 2) > 7
6x+6>7
6x>-6+7/:6
x>1/6
5. x - 4 ≤ 2
6. 17 - x < 12
7. 2 (x - 4) ≥ 12
8. 3x + 15 > 5x - 3