10
Step-by-step explanation:
Given expression: 8 + 3 x 2 - 4
To solve this we will apply the order of operations:
BODMAS (Bracket, Of, Division, Multiplication, Addition, and Subtraction) or PEDMAS (Parentheses, Exponents, Division, Multiplication, Addition, and Subtraction) is used.
From the above, multiplication comes before addition and subtraction:

8 + 3 x 2 - 4 = 10