If you are looking for the Teacher's Edition (Methodological recommendations), search for "Методическое пособие Алимов 9 класс" —it often contains the solutions plus explanations on why the math works.
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Finding a free GDZ (Reshebnik) for Alimov’s 9th-grade algebra textbook is easy, but you have to be careful about which sites you use to avoid spam or outdated editions. If you are looking for the Teacher's Edition