Math Problem Statement

2x + y - z = - 1; x + 2y + z = 4; 3x - y + z = - 9 Tentukan adalah...

Solution

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Systems of Equations

Formulas

Elimination method for solving systems of linear equations

Theorems

Elimination Method
Substitution Method

Suitable Grade Level

Grades 9-11