Respuesta :

Lets do the operations step by step and lets give it precedence to the division before the addition and the multiplication before the subtraction:
-2×(3+18÷3)-6
= -2 x (3 + 6) - 6
= -2 x (9) - 6
= -2 x 9 - 6
= -18 - 6
= -24

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