Question

2(3-x)-(7+2x)=10
Помогите пж​

Answer 1

Ответ:

2(3 - x) - (7 + 2x) = 10

6 - 2x - 7 - 2x = 10

-1 - 4x = 10

-4x = 10 + 1

-4x = 11

X = - 11/4

Сокращаем:

- 2 3/4 или -2,75

Answer 2

Ответ:

$x = - 2.75$

Объяснение:

$2(3 - x) - (7 + 2x) = 10 \\ 6 - 2x - 7 - 2x = 10 \\ - 2x - 2x + 6 - 7 = 10 \\ - 4x - 1 = 10 \\ - 4x = 10 + 1 \\ - 4x = 11 \\ x = 11 \div ( - 4) \\ x = - 2.75$