The value of n is 3, by the commutative property.
m = n/(n-1)
m + n = 10000.05m + 0.06n = 57
It would be the same number either way because its addition.
If: m = n+x/p then x = p(m-n)
Yes. Matrix addition is commutative.
This is a hyperbola. It is best approached using Fermat's factorisation method. Seefermat-s-factorization-methodor google wikepedia. I don't know of any faster approach.