🧮 Cramer’s Rule for 3x3 Systems |Full Walkthrough!

Описание: 🧠 Struggling with 3x3 systems? Cramer’s Rule turns messy algebra into simple matrix math!
In this video, we solve the following system of linear equations using Cramer’s Rule.

🎯 What you’ll learn:
How to compute 3×3 determinants using cofactor expansion
How to apply Cramer’s Rule for any 3×3 linear system
🚨 Common mistake: Forgetting signs or cofactor order when calculating 3×3 determinants!

💬 Comment below with YOUR toughest system of equations — and I’ll solve it in the next tutorial!