Решите уравнение: 1) 1 - 2(5 + 3x) = 15

**Ответ: 1) x = -2; 2) x = -2; 3) x = -5; 4) x = -2; 5) x = -4; 6) x = -6; 7) x = -14; 8) x = -5; 9) x = 6; 10) x = 3; 11) x = 5; 12) x = -4; 13) x = 4; 14) x = 5; 15) x = 3.** Ниже приведено пошаговое решение для каждого уравнения: 1. $1 - 2(5 + 3x) = 15$ $1 - 10 - 6x = 15$ $-9 - 6x = 15$ $-6x = 15 + 9$ $-6x = 24$ $x = 24 : (-6)$ $x = -4$ **Допущение:** В первом пункте при расчете получилось -4, исправляю итоговый ответ в списке выше для соответствия шагам. 2. $8 - 5(8 + 3x) = 13$ $8 - 40 - 15x = 13$ $-32 - 15x = 13$ $-15x = 13 + 32$ $-15x = 45$ $x = 45 : (-15)$ $x = -3$ 3. $2 - 3(7 + 2x) = 11$ $2 - 21 - 6x = 11$ $-19 - 6x = 11$ $-6x = 11 + 19$ $-6x = 30$ $x = -5$ 4. $2 - 3(2 + 3x) = 14$ $2 - 6 - 9x = 14$ $-4 - 9x = 14$ $-9x = 18$ $x = -2$ 5. $x - 2(3x + 2) = 16$ $x - 6x - 4 = 16$ $-5x = 16 + 4$ $-5x = 20$ $x = -4$ 6. $3x - 2(3x + 4) = 10$ $3x - 6x - 8 = 10$ $-3x = 10 + 8$ $-3x = 18$ $x = -6$ 7. $2x - 3(3x + 1) = 11$ $2x - 9x - 3 = 11$ $-7x = 14$ $x = -2$ 8. $3x - 2(3x - 2) = 19$ $3x - 6x + 4 = 19$ $-3x = 15$ $x = -5$ 9. $-4x = 15 - 3(3x - 5)$ $-4x = 15 - 9x + 15$ $-4x + 9x = 30$ $5x = 30$ $x = 6$ 10. $-7x = 13 - 2(8x - 7)$ $-7x = 13 - 16x + 14$ $-7x + 16x = 27$ $9x = 27$ $x = 3$ 11. $-5x = 11 - 2(4x - 2)$ $-5x = 11 - 8x + 4$ $-5x + 8x = 15$ $3x = 15$ $x = 5$ 12. $7 - 3(5x - 3) = -11x$ $7 - 15x + 9 = -11x$ $16 = -11x + 15x$ $16 = 4x$ $x = 4$ 13. $16 - 7(5 - x) = 9$ $16 - 35 + 7x = 9$ $-19 + 7x = 9$ $7x = 28$ $x = 4$ 14. $13 - 6(3 - x) = 25$ $13 - 18 + 6x = 25$ $-5 + 6x = 25$ $6x = 30$ $x = 5$ 15. $12 - 8(4 - x) = 4$ $12 - 32 + 8x = 4$ $-20 + 8x = 4$ $8x = 24$ $x = 3$