SUBSTITUTE
k & r

1. Use Algebra 101 rules to rearrange the equation.
   
   
2. Our next step is to square both sides to delete the radical.
   
   
   
3. Next, we substitute the numbers we know, or think we know, into the equation. Use 1.37e10 if you believe God created the entire universe in 6 days. Use 4.57e09 if you believe God's 6 day labor refers only to the Earth. If you think your results will be more accurate, use 365.2425 as the length of the average year. Plug these numbers into the calculator and reduce the known side to one number.
   
   
4. You have now calculated the ratio of t_God to t_man. Call this ratio r. Square it. What's that number? This is for you to do. Move it to box A.
   
   
   
5. Substitute kc for v. This will make calculations easier. Otherwise, you would need to convert light speed in seconds to light speed in years. It would not be pretty.