Hi, I've been trying to solve this problem:

Let $x$ and $y$ be integers. Show that $9x + 5y$ is divisible by $19$ if and only if $x + 9y$ is divisible by $19.$

I tried to do several things but a they all didn't work, could someone help me? Thank you!

Guest Aug 8, 2020

edited by
Guest
Aug 8, 2020

#1**+4 **

This question has been answered multiple times already...(your classmates probably asked it?)

here is one instance: https://web2.0calc.com/questions/an-answer-was-originally-written-as-a-photo-is-there

:)

ilorty Aug 8, 2020