We follow the BODMAS rule in simplifying the expression.
BODMAS: Brackets open, Division, Multiplication, Addition and Subtraction (in the given order)
Now, we have:
– 10 + [(–3) × (–5) ÷ 3]
= –10 + [(–3) ×] (Performing division first)
= –10 + 5 (Performing multiplication in the square brackets)
= –5