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Решите задачу:

$- x + 6 = 11 \\ - x = 11 - 6 \\ - x = 5 \\ x = - 5 \\$
$- 6x + 2 = - x + 22 \\ - 6x + x = 22 - 2 \\ - 5x = 20 \\ x = \frac{20}{ - 5} \\ x = - 4$

$5x + 15 = x - 1 \\ 5x - x = - 1 - 15 \\ 4x = - 16 \\ x = \frac{ - 16}{4} \\ x = - 4 \\$
$- 5x + 2 = - 13 \\ - 5x = - 13 - 2 \\ - 5x = - 15 \\ x = \frac{ - 15}{ - 5} \\ x = 3 \\$
$4(3x + 5) - 14 = 2(x - 7) \\ 12x + 20 - 14 = 2x - 14 \\ 12x - 2x = - 14 - 20 + 14 \\ 10x = - 20 \\ x = \frac{ - 20}{10} \\ x = - 2$