Math Problem Statement
Résoudre 21x≡15(mod18)
Solution
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Math Problem Analysis
Mathematical Concepts
Number Theory
Modular Arithmetic
Congruence Equations
Formulas
Simplification of congruence equation
x ≡ b (mod m)
Theorems
Greatest Common Divisor (GCD)
Linear Congruence Theorem
Suitable Grade Level
Grades 10-12
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