Ответ:
- \(2+3x=-7x-5\); \(10x=-7\); \(x=-\frac{7}{10}\).
- \(-4x-9=6x\); \(-9=10x\); \(x=-\frac{9}{10}\).
- \(4(x-8)=-5\); \(x-8=-\frac{5}{4}\); \(x=8-\frac{5}{4}=\frac{27}{4}\).
- \(1-10x=5x+10\); \(-15x=9\); \(x=-\frac{3}{5}\).
Ответ: 1) \(x=-\frac{7}{10}\); 2) \(x=-\frac{9}{10}\); 3) \(x=\frac{27}{4}\); 4) \(x=-\frac{3}{5}\).
