Put Any Mathematic signs: - Toughest Quarantine Riddle

If u solve this,

Put Any Mathematic signs:

2 2 2=6 2*2+2

3 3 3=6 3*3_3

4 4 4=6

5 5 5=6

6 6 6=6 6+6-6

7 7 7=6

8 8 8=6

9 9 9=6

Max 1day time…..

any bdy can solve