Question

решите плииииз срочнооо ​

Answer 1

Ответ:

1)

17x - 2.6 = 3(0.8 + 3x)

17x - 2.6 = 2.4 + 9x

17x - 9x = 2.4 + 2.6

8x = 5

x = 5/8

x = 0.625

3) 38(0.1x + 1) = 40 - 3.2x

3.8x + 38 = 40 - 3.2x

3.8x + 3.2x = 40 - 38

7x = 2

x = 2/7