new3r

1 Questions
0 Answers

+1

594

1

+5

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

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

This is a repost, though the last post's solution was removed for some reason.
read more ..

new3r Aug 3, 2020