Question

Can you give me an equation that equals to 31

Answer 1

You could do various equations. Some simple ones:

30+1=31
18+13=31
3+28=31

Or maybe you want an algebraic equation:

2x+1=31 (x=15)
5x+6=31 (x=5)


:)

Answer 2

There are m any examples of equations that equal 31. Here are a few:
17 + 14
30 + 1
60 - 29

I like this one though (its 2 step)

(15 x 2) + 1

Hope this helped :)