You can put this solution on YOUR website! To simplify this, you need to combine "like terms." "Like terms" are the parts of the expression that have the same variables raised to the same power. In this case, 5x,-3x, and x are like terms. You can combine those to get 3x. The other terms do not share common variables with any other terms, so they will stand alone. Thus, your answer is:
==========================
Good Luck,
tutor_paul@yahoo.com