Question

помогите пожалуйста. Срочно ​

Answer 1

Ответ:

$\frac{12 - 2.4x}{8} = \frac{3.8x - 19}{4} \\ 4(12 - 2.4x) = 8(3.8x - 19) \\ 48 - 9.6x = 30.4x - 152 \\ - 9.6x - 30.4x = - 152 - 48 \\ - 40x = - 200 \\ x = - 200 \div - 40 \\ x = 5$

Answer 2

12-2,4x/8=3,8x-19/4

(12-2,4x)×4=(3,8x-19)×8

48-9,6x= 30,4x-152

-9,6-30,4= -152-48

-40x=-200

x=-200÷(-40)

x=5