№5. Решите уравнения 1) (3х + 5) + (8x + 1) = 17 2) (3 - 5,8x) - (2,2x + 3) = 16

№5. Решите уравнения

1) $$(3x + 5) + (8x + 1) = 17$$

$$3x + 5 + 8x + 1 = 17$$

$$11x + 6 = 17$$

$$11x = 17 - 6$$

$$11x = 11$$

$$x = \frac{11}{11} = 1$$

Ответ: x = 1

2) $$(3 - 5,8x) - (2,2x + 3) = 16$$

$$3 - 5,8x - 2,2x - 3 = 16$$

$$-8x = 16$$

$$x = \frac{16}{-8} = -2$$

Ответ: x = -2