I don't know really ask someone smarter than me
Well, you can only combine the numbers with the variable (the x) in front of them, since there’s no other number on the left side of the equation to combine that lone number with
(example: 3x+2+5x; you can only add 3x and 5x together since 2 has no x).
So 3x and -2/9x would be your answer.
Restaurant D offered the best deal at $13.05 per 9 shrimp because it you but 18 it will only cost you 26.15 but if you buy from restaurant A you only get 16 shrimp for 26.40 so I'd say go wit restaurant D
