please help asap

Question

Sarah took the advertising department from her company on a round trip to meet with a potential client. Including Sarah a total of

11

people took the trip. She was able to purchase coach tickets for

​$280

and first class tickets for

​$1280.

She used her total budget for airfare for the​ trip, which was

​$6080.

How many first class tickets did she​ buy? How many coach tickets did she​ buy?

Answer 1

c represents the number of coach tickets

11 - c represents the number of firs-class tickets

280c + 1280(11 - c) = 6080

Can you solve for c and answer?