Question 1085725
Rather than re-invent the wheel, so to speak, it's probably best to direct you to a page where someone has previously solved this problem. 


In this case, it's a YouTube video showing all the steps to get to the answer. The link is shown below


<a href = "https://www.youtube.com/watch?v=R6myD-1xcdk">https://www.youtube.com/watch?v=R6myD-1xcdk</a>


Let me know if you still have any questions about any of the steps. Thank you.