Following PEMDAS (Parenthesis, exponent, multiplication, division, addition, subtraction), first let's do the first division problem.
85/5 = 17
17 - 12 * 3 + 4 * 3
Next, let's do the first multiplication problem.
12 * 3 = 36
17 - 36 + 4 * 3
After that, the next multiplication problem:
4 * 3 = 12
17 - 36 + 12
Finally, just solve the problem left to right.
17 - 36 + 12
= -19 + 12
= -7
So, your answer is -7.
Hope this helped!