Math Problem Statement

реши систему и сделай объяснение на русском языке

Solution

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Math Problem Analysis

Mathematical Concepts

Algebra
Systems of Equations
Polynomial Equations

Formulas

Distributive Property: a(b + c) = ab + ac
Combining like terms: ax + bx = (a + b)x

Theorems

Properties of Equality
Factoring (if used)

Suitable Grade Level

Grades 9-11