राजा, वज़ीर और चिप्स (विलोपन विधि द्वारा समीकरणों के हल)

Whole-channel inclusion: Khan Academy India - Hindi medium is an honest teaching channel (title sample + 3 transcripts read: All three transcripts show structured curriculum-based teaching (biology concepts and probability worked example), consistent with genuine educational content.); this title passed a strict title check (sonnet) after a labelling pass.