1) 4x+9-6x 2) -5x-10--7x 3) 3+4x-6x-8 4) 4-5x-3x+10 5) 10(x-4)-9 6) 4(x-8)=-6 7) 2(x-3)-5 8) 5(x+2)=3 9) 3(x+5)=-9 10) 6(x+2)--12

Вариант 1. Решаем уравнения.

Пошаговое решение:

1. \(4x + 9 - 6x = 0\) \(-2x = -9\) \(x = \frac{9}{2} = 4.5\)
2. \(-5x - 10 = -7x\) \(2x = 10\) \(x = 5\)
3. \(3 + 4x - 6x - 8 = 0\) \(-2x = 5\) \(x = -\frac{5}{2} = -2.5\)
4. \(4 - 5x = 3x + 10\) \(-8x = 6\) \(x = -\frac{6}{8} = -\frac{3}{4} = -0.75\)
5. \(10(x - 4) = 9\) \(10x - 40 = 9\) \(10x = 49\) \(x = \frac{49}{10} = 4.9\)
6. \(4(x - 8) = -6\) \(4x - 32 = -6\) \(4x = 26\) \(x = \frac{26}{4} = \frac{13}{2} = 6.5\)
7. \(2(x - 3) = 5\) \(2x - 6 = 5\) \(2x = 11\) \(x = \frac{11}{2} = 5.5\)
8. \(5(x + 2) = 3\) \(5x + 10 = 3\) \(5x = -7\) \(x = -\frac{7}{5} = -1.4\)
9. \(3(x + 5) = -9\) \(3x + 15 = -9\) \(3x = -24\) \(x = -8\)
10. \(6(x + 2) = -12\) \(6x + 12 = -12\) \(6x = -24\) \(x = -4\)

Ответы: 1) 4.5, 2) 5, 3) -2.5, 4) -0.75, 5) 4.9, 6) 6.5, 7) 5.5, 8) -1.4, 9) -8, 10) -4