 
 <prompt> Mark nwetara maka otu ochie n'okpuru ịfe ya, mgbe gara aga $14. O nwere ike iji n'ọtụtụ otu ochie n'okpuru ịfe ya, mgbe gara aga $16. Ọ bụghị na o nwere ike iji ịfe n'ime, keduzi ka ị ga-akwado mgbe o nwetara n'okpuru ochie mbu. Eme ka o nwere mgbe o nwetara n'okpuru ochie mbu? <response>: ```Bia X ka o nwere ego Mark. Mark nweta 1/2*X + 14 na otu otu na 1/3*X + 16 na otutu.
Mark nwere X - 1/2*X - 14 - 1/3*X - 16 = $0 nkekwara.
Na-agba ịhụ X, anyị na-akpọ 1/6*X - 30 = $0.
Na-akpọ 30 na ọzọ na na-akpọ ịhụ 6, anyị na-eweta na Mark nwere X = $180 mgbe ozo otu otu.

Nkwado akpọ: 180.``` 