PEMDAS, or BEDMAS goes like this:
first brackets ()
then exponents x2
then multiplication and division. These two are equals, as in you complete whichever one comes first
lastly it's addition and subtraction. Like Multiplication and division, they are equals, and are to be completed left to right.
3-3*6+2
Multiplication first, so
=3-18+2
Since addition and subtraction are on the same "tier" you do it from left to right.
=(-15)+2
=(-13)
Hope this helps!
