Вопрос:

1. 8x + 11 = 6x + 13

Ответ:

\(8x + 11 = 6x + 13 \)
\(8x - 6x = 13 - 11 \)
\(2x = 2 \)
\(x = 2 / 2 \)
\(x = 1 \)

Ответ: x = 1