For the (Г.В. Дорофеев), there isn't a single official "paper" of ready-made homework (GDZ) in the sense of a standalone workbook. Instead, "GDZ" is typically found in two formats: 1. Physical "All Homework" Books
Most students use free digital versions that can be printed if you need a paper copy of a specific solution: provides clear, modern layouts. Gdz.ru is a standard resource for textbook answers. gotovye domashnie zadaniia po algebre dorofeeva 9 klaas
(Контрольные работы) by Kuznetsova, Minaeva, et al.. Available at Yandex Market . For the (Г
Дорофеев Алгебра 9 купить на OZON по низкой цене Physical "All Homework" Books Most students use free
(Дидактические материалы) which provide extra problems and independent works. Online Alternatives (Printable)
If you are looking for specific paper resources used in schools for homework and testing, the official UMK (Educational Methodical Set) includes:
(Рабочая тетрадь) in two parts, designed for students to write answers directly on the page. Available at Sima-Land .