Can You Solve This Interesting Maths Puzzle?

Are you ready to challenge your brain?

Basically, the idea is to make three of any number from 0-9 equal 6 using mathematical functions.

So you have

0 0 0 = 6
1 1 1 = 6
2 2 2 = 6
3 3 3 = 6
4 4 4 = 6
5 5 5 = 6
6 6 6 = 6
7 7 7 = 6
8 8 8 = 6
9 9 9 = 6

An example is 6+6-6 = 6.

The caveat is : No functions with numbers. For example, no squares, no raising any number to any power, no cube roots, etc.

You can't use the not equal sign lol (all you cunning people out there)

You can't add extra numbers. e.g, you have to make 1 1 1 = 6 without including any other number.

Ready?