12x-39=8x+5

To solve the equation \( 12x - 39 = 8x + 5 \), follow these steps:

1. Isolate the variable term on one side: Start by getting all the \( x \) terms on one side. Subtract \( 8x \) from both sides:

   \[ 12x - 8x - 39 = 5 \]

   This simplifies to:

   \[ 4x - 39 = 5 \]

2. Move the constant term: Next, add \( 39 \) to both sides to isolate the term with \( x \):

   \[ 4x = 5 + 39 \]

   This simplifies to:

   \[ 4x = 44 \]

3. Solve for \( x \): Finally, divide both sides by \( 4 \):

   \[ x = \frac{44}{4} \]

   Which simplifies to:

   \[ x = 11 \]

Thus, the solution is \( x = 11 \).