Use P(parenthesis)E(exponents)MD(multiplication+division)AS(addition and subtraction
Always go left to right when solving
First, do 12/3
9+4-1*4+2
Next multiply -1*4
9 + 4 - 4 + 2
Next 9+4
13 - 4 + 2
Next 13-4
9 + 2
Last step
Your answer is 11
Hope this helps!