For this case we have that the order of algebraic operations is determined by PEMDAS:
P: Perform any calculation inside the parentheses, making the most internal ones first.
E: Simplify any exponential expressions.
MD: Do all the multiplications and divisions, from left to right, as they appear.
AS: Do all the addition and subtraction, from left to right, as they appear.
Then, we have the following expression:
-4 + 12 ÷ (-3) ÷ 10 + 3 (-2) =
-4-4 ÷ 10 + 3 (-2) =
-4-0.4 + 3 (-2) =
-4-0.4-6 =
-4.4-6 =
-10.4
Answer:
-10.4
