Step 1 :First, we need to follow the order of operations (PEMDAS/BODMAS) to solve this expression. So, we'll perform the multiplication, then addition and subtraction from left to right.
Step 2 :\(3+3 \times 3-3+3\)
Step 3 :\(3+9-3+3\)
Step 4 :\(12-3+3\)
Step 5 :\(9+3\)
Step 6 :\(\boxed{12}\)