If you specifically need help with a book by , you are likely looking for his Mathematics 6th Grade textbook. Solutions for Vilenkin’s math problems are extremely popular and can also be found on the sites mentioned above (e.g., GDZ.ru for Vilenkin Math).
: A modern alternative focused on practical application. Where to Find Online Solutions (Reshebniks) onlain reshebnik po russkomu iazyku 6 klass vilenkin
ГДЗ по русскому языку за 6 класс, решебник и ответы онлайн If you specifically need help with a book