Question

Пожалуйста решите:
1,3-3,6(х-3)=5(8-0,4х)

Answer 1

Решение уравнения:

$1.3 - 3.6(x - 3) = 5(8 - 0.4x)$

$1.3 - 3.6x + 10.8 = 40 - 2x$

$- 3.6x + 2x = 40 - 10.8 - 1.3$

$- 1.6x = 29.2 - 1.3$

$- 1.6x = 27.9$

$x = 279 \div ( - 16)$

$x = - 17.4375$

Answer 2

Пошаговое объяснение:

$1.3 - 3.6(x - 3) = 5(8 - 0.4x) \\ 1.3 - 3.6x + 10.8 = 5(8 - 0.4x) \\ 12.1 - 3.6x = 5(8 - 0.4x) \\ 12.1 - 3.6x = 40 - 2x \\ 12.1 - 3.6x + 2x = 40 \\ 12.1 - 1.6x = 40 \\ - 1.6x = 40 - 12.1 \\ - 1.6x = 27.9 \\ x = 27.9 \div ( - 1.6) \\ x = - \frac{279}{16} = - 17 \frac{7}{16} = - 17.4375$