\[- 8 \cdot (k - 3) + 4 \cdot (k - 2) - 2 \cdot (3k + 1) =\]
\[= - 8k + 24 + 4k - 8 - 6k - 2 =\]
\[= k( - 8 + 4 - 6) + (24 - 8 - 2) =\]
\[= - 10k + 14 = 14 - 10k\]