Math Problem Statement

Ma soeur et moi mettons en commun 110€ pour acheter un cadeau . je donne 100€ de plus qu'elle. Combien ma soeur a-t-elle donné ?

Solution

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations

Formulas

x + (x + 100) = 110
2x + 100 = 110

Theorems

Linear Equation Solving

Suitable Grade Level

Grades 6-8