\( - 2 m + 3 n - 6 j 3 m - 8 n + 8 ; \quad 5 m + n - 10 \)

To simplify the expression, combine the like terms. Starting with the first expression: - Combine \( -2m \) with \( 3m \) to get \( m\). - Combine \( 3n \) with \( -8n \) to result in \( -5n \). - The \( -6j \) stays as is, and \( +8 \) is a constant. So, the first part simplifies to: \[ m - 5n - 6j + 8 \] Now for the second expression, \( 5m + n - 10 \), it’s already simplified. Putting both expressions together, we can express them as: \[ (m - 5n - 6j + 8) + (5m + n - 10) \] Now combine the like terms in this entire expression: - \( m + 5m = 6m \) - \( -5n + n = -4n \) - \( -6j\) remains as is, and \( 8 - 10 = -2\). Thus, the final combined result is: \[ 6m - 4n - 6j - 2 \]