Question

решите уравнения

7(2 - x) = x + 12

Answer 1

14-7х=х+12

-7х-х=12-14

-8х=-2

-х=-0,25

х=0,25

Answer 2

Ответ:

$7 \times 2 - 7x = x + 12 \\ 14 - 7x = x + 12 \\ - 7x - x = 12 - 14 \\ - 8x = - 2 \\ x = \frac{ - 2}{ - 8} \\ x = \frac{1}{4}$