ahmed bought 6 bags at $x each ,n bags. at$12. each,(2n+1) bags at $15 each and 4 bags at $3x each .Find the total cost of the bags he bought
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Answer:
(6×x)+(n×12)+{(2n+1)×15}+(4×3x)=
6x+12n+30n+15+12x=
18x+42n+15. (in $)
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