Which number is missing? – Math Puzzle

From Math Queen.

In this math video I (Susanne) explain how to solve a math competition problem by turning it into a system of equations and solving it step by step. You’ll learn how to translate a problem into equations and solve the system efficiently. Perfect for students preparing for math contests, exams, or advanced algebra. Mathematics explained.

00:00 Intro – Math Puzzle
1:18 Solution 1
5:58 Solution 2
7:21 See you later!

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​⁠ @MathemaTrick

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#puzzle #competition #maths