There is probability of 7/8 of not getting yellow.
x = -4, so use the first equation, x^2 = -4^2 = -16
x = 4, use 3rd equation, sqrt(x) = sqrt(4) = 2
Each just has different amounts of 0s
Lets Brian => b and Ethan => e so
b=5
e=3+2b
will be the equation of finding free throws.