You can find the answers for the 7th-grade Russian language textbook by M.M. Razumovskaya (2017 and similar editions) through several online resources that offer step-by-step solutions and rule explanations. Popular Resources for Solutions
: Studying parts of speech and morphological analysis.
: Reviewing spelling and how words are built.
: Learning sentence structure and the functions of punctuation marks.
: Offers a digital version of the solutions for various editions of the Razumovskaya textbook, which is helpful if your specific page numbering differs slightly.