Let's simplify the equation step by step:
The original equation is:
\[ 5m - 5m - 12 = 14 - 2 \]
Now, simplify both sides:
On the left side: \[ 5m - 5m - 12 = -12 \]
On the right side: \[ 14 - 2 = 12 \]
Now we have:
\[ -12 = 12 \]
This is a contradiction, meaning that there are no values of \( m \) that will satisfy the equation.
Thus, the number of solutions to the equation is Zero.