I mean they both have a factor of 3 you just take -3x > 9 and just flip it

<u>Reasoning </u><u>:</u><u>-</u>
- & - together will give you +
Answer:
it will be 14x15x18+11+13+16
The answer would be about 98 hamburgers.
This is because you would have to divide 393 by 2 to get 196.5.
Since the number of cheeseburgers is doubled divide 196.5 by 2 to get 98.25.
Add 98.25 to 196.5 and get 294.75.
Subtract.