Răspuns:
[tex]8 \times 3 + 8 \times k = 6k + 2 \\ 24 + 8k = 6k + 2 \\ 8k - 6k = 2 - 24 \\ 2k = - 22 \\ k = \frac{ - 22}{2} \\ k = - 11[/tex]