It's a simple linear equation in 'y'. There is only one number that 'y' can be
that will make the equation a true statement. That number is called the
'solution' to the equation. Here's one way to find it:
You said that 2 = y/5 - 8
Add 8 to each side: 10 = y/5
Multiply each side by 5: 50 = y