[tex]2( x - 1) < - 6 \\ 2x - 2 < - 6 | + 2 \\ 2x < - 4 | \div 2 \\ x < - 2[/tex]
[tex]3(x + 1) < - 18 \\ 3x + 3 < - 18 | - 3 \\ 3x < - 21 | \div 3 \\ x < - 7[/tex]
[tex]2(x + 8) \leqslant - 10 \\ 2x + 16 \leqslant - 10 | - 16 \\ 2x \leqslant - 26 | \div 2 \\ x \leqslant - 13[/tex]
[tex]5(x - 1) < 0 \\ 5x - 5 < 0 | + 5 \\ 5x < 5 | \div 5 \\ x < 1[/tex]
[tex]3 + 2(x + 2) < 5 \\ 3 + 2x + 4 < 5 \\ 7 + 2x < 5 | - 7 \\ 2x < - 2 | \div 2 \\ x < - 1[/tex]
[tex]1 + 4(x - 1) < - 7 \\ 1 + 4x - 4 < - 7 \\ - 3 + 4x < - 7 | + 3 \\ 4x < - 4 | \div 4 \\ x < - 1[/tex]
