 
<translate> Ka x bụrụ oke mmiri ozuzo na elekere mbụ. Mmiri zoro okpukpu abụọ na sentimita asaa n'ime awa nke abụọ. x + 2x + 7 = 22. 3x + 7 bụ 22. 3x = 15. x = 5 sentimita asatọ. Azịza ya bụ: 5. <eng> Let x be the amount of rain in the first hour. It rained 2x + 7 inches in the second hour. x + 2x + 7 = 22. 3x + 7 = 22. 3x = 15. x = 5 inches. Final answer: 5. 