Linear Equation Word Problems - Examples & Practice

In a completely real and definitely not made up video game, you have armor that increases your base strength by 300 points. You also have a sword that increases whatever your base strength is at any given moment by 150%. Finally, you just unlocked the ability to enchant your armor as many times as you want which increases your base strength by 100. Write a function for the amount of strength you have where $x$ is the number of times you enchant your armor.