6m+13m-7m=108

To solve the equation \( 6m + 13m - 7m = 108 \), first combine the like terms on the left side:

\[ (6m + 13m - 7m) = 12m \]

Now the equation simplifies to:

\[ 12m = 108 \]

Next, to solve for \( m \), divide both sides by 12:

\[ m = \frac{108}{12} \]

Calculating this gives:

\[ m = 9 \]

Thus, the solution is:

\[ m = 9 \]