If you are looking for specific paper resources used in schools for homework and testing, the official UMK (Educational Methodical Set) includes:
Дорофеев Алгебра 9 купить на OZON по низкой цене
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
Publishers like (Экзамен) or VAKO (ВАКО) often release paper collections titled "All Home Work" (Все домашние работы) for the 9th grade. These are printed books that contain step-by-step solutions for every exercise in the Dorofeev textbook. You can find these at major retailers: Ozon Wildberries 2. Supporting Paper Materials
(Контрольные работы) by Kuznetsova, Minaeva, et al.. Available at Yandex Market . If you are looking for specific paper resources
(Дидактические материалы) which provide extra problems and independent works. Online Alternatives (Printable)
(Рабочая тетрадь) in two parts, designed for students to write answers directly on the page. Available at Sima-Land . These are printed books that contain step-by-step solutions
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