Answer:
12
Step-by-step explanation:
Use pemdas. You do multiplication first.
3×3=9
3+9-3+3
Now add
3+9=12
Subtract:
12-3=9
Add:
9+3=12
Your answer should be 18
3 + 3 = 6
6 × 3 = 18
18 - 3 = 15
15 + 3 = 18