I have a question regarding this problem. My question: How do you know that exactly (x-y) will be multiplied by n? Because if the logic is reversed the answers will be irrelevant. I mean instead of coming to “ys + (x-y)n = xc” equation you can end up with “(x-y)s + yn = xc”, then the anwers will be irrelevant even if the logic is right. Thanks!!!

Sincerely,

Azamat

Veretas Student