You can find digital versions and practice materials for Alexandrova's Grade 9 Algebra through the following platforms:
L. A. Alexandrova’s is a standard supplementary resource used alongside the Mordkovich curriculum to monitor student progress through tests and diagnostic assessments. Online Resources and Downloads kontrolnye raboty po algebre l.aleksandrova 9 klass onlajn
Many of these control works are aligned with the logic and structure of the OGE (State Final Examination). You can find digital versions and practice materials