Question

y=4
2·(3,5у – 2,5) + 4,5у – 1

Answer 1

$2(3.5y - 2.5) + 4.5y - 1 = 7y - 5 + 4.5y - 1 = 11.5y - 6 \\ \\ \\ 11.5 \times 4 - 6 = 46 - 6 = 40$

Answer 2

Ответ:

40

Пошаговое объяснение:

2*(3,5у - 2,5) + 4,5у - 1 =

7у - 5 + 4,5у - 1 = 11,5у - 6

у = 4

11,5у - 6 = 11,5 * 4 - 6 = 46 - 6 = 40