To find the solution to the equation 5x - 15, we can start by isolating the variable x.
Step 1: Add 15 to both sides of the equation.
5x - 15 + 15 = 0 + 15
5x = 15
Step 2: Divide both sides of the equation by 5 to solve for x.
5x/5 = 15/5
x = 3
Therefore, the solution to the equation 5x - 15 is x = 3.