Applying distributive property with a negative one to solve the multi step equation

The video tutorial demonstrates how to solve a multi-step equation with three variables. It begins by simplifying the equation, removing parentheses, and combining like terms. The instructor explains the process of rewriting the equation to make it easier to solve. Finally, the solution is reached by isolating the variable and performing basic arithmetic operations. The tutorial concludes with a summary of the steps taken to solve the equation.

Explain how to combine like terms in an equation.

What is the final solution for the variable X in the equation discussed?