What is 3x+8+x=28 done in distributive property

Fiona and her friends are playing a game by guessing where a coin will land when it is randomly dropped inside the square shown below. fiona guesses that the coin is likely to land in the blue area. which explains whether or not fiona is correct and why?

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

Im literally having a mental breakdown