Solving a system of equations using a famous trick

This video is about a system of equations My merch: https://teespring.com/stores/sybermat... Follow me:   / sybermath   Subscribe!!!: https://www.youtube.com/SyberMath?sub... If you need to post a picture of your solution or idea: https://twitter.com/intent/tweet?text... #ChallengingMathProblems #PolynomialSystems EXPLORE: A rational equation. A challenge in algebra:    • A challenging rational equation   Finding the area of a weird region in a quarter circle:    • Finding the area of a weird region in a qu...   Solving an exponential equation:    • Solving A Challenging Exponential Equation