Math Problem Statement

Roger à 25 ans de plus que céline . Dans deux ans Roger aura le double de l'age de céline. Quel age a Roger ?

Solution

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Systems of Equations

Formulas

r = c + 25
r + 2 = 2 × (c + 2)

Theorems

Substitution Method

Suitable Grade Level

Grades 8-10