1 answer
(click or scroll down)
Combine the terms on the left to get
4*27*x^5 = 108 x^5
Set that equal to 3.548*10^82 = 354.8*10^80
Now take the 1/5 root (0.2 power)of each side
2.5509 x = 3.2359*10^16
x = 1.2685*10^16