Question

решите уравнение 5(x-4,2) =11x.​

Answer 1

5(x - 4,2) = 11x

5x - 21 = 11x

11x - 5x = - 21

6x = - 21

x = - 3,5

Answer 2

Ответ:

$x = - 3.5$

Объяснение:

$5(x - 4.2) = 11x \\ 5x - 21 = 11x \\ 5x - 11x = 21 \\ - 6x = 21 \\ x = 21 \div ( - 6) \\ x = - 3.5$