another little bit of help and this is NOT a homework assignment this is for an exam i need to understand it(adsbygoogle = window.adsbygoogle || []).push({});

the qustion is find the decryption function for C = (7M + 9 ) mod 26

how do i fin the decryption function using the inverse?

that is 15 in this case

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Solving linear congruences

**Physics Forums | Science Articles, Homework Help, Discussion**