Автор - petrovanastya505

Напишите решение 1,3,5,7,9 пожалуйста.

Ответ

Проверено экспертом

Автор - Universalka

1) 1,3p - 11 = 0,8p + 5

1,3p - 0,8p = 5 + 11

0,5p = 16

p = 32

3) 8c + 0,73 = 4,61 - 8c

8c + 8c = 4,61 - 0,73

16c = 3,88

c = 0,2425

5) 2 = (3x - 5) - (7 - 4x)

2 = 3x - 5 - 7 +4x

2 = 7x - 12

7x = 2 + 12

7x = 14

x = 2

7) (4y + 3) - (10y + 11) = 7 + (13 - 4y)

4y + 3 - 10y - 11 = 7 + 13 - 4y

- 6y - 8 = 20 - 4y

- 6y + 4y = 20 + 8

- 2y = 28

y = - 14

9) 3y - (y - 19) = 2y

3y - y + 19 = 2y

2y + 19 = 2y

2y - 2y = - 19

0 * y = - 19

решений нет

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