Respuesta :

3+(3x3)-3+3
= 3 + 9 - 3 + 3
= 12 - 3 + 3
= 9 + 3
= 12

Do you get it?
Do each equation in an algebraic way:

3+3×3-3+3=Use PEMDAS:
Multiplication First
Addition Second
Subtraction Third

3+(3·3)-3+3:
(3+9)-3+3:
12-(3+3):
12-6:
Answer: 6

Your answer will NOT be 18.

So final answer is: 6

Hope this helps!