Math Problem Statement

∆= 𝑎11𝑎22 − 𝑎12𝑎21. a. 5𝑥 − 4𝑦 = 19 b. 4𝑥 − 6𝑦 = 6 −2𝑥 + 3𝑦 = −9 6𝑥 − 3𝑦 = 5 Resulvelo paso a paso En español

Solution

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Math Problem Analysis

Mathematical Concepts

Linear Algebra
Systems of Linear Equations
Determinants
Cramer's Rule

Formulas

Determinant formula for a 2x2 matrix: ∆ = a11a22 − a12a21
Cramer's Rule: x = Δx / Δ, y = Δy / Δ

Theorems

Cramer's Rule: Method to solve systems of linear equations using determinants

Suitable Grade Level

Grades 9-12