Math Problem Statement
Solve this equation: 1.x-3y = -9 2x+7y=8 The theorem is: Solving system of linear equations by substitution method
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Systems of Equations
Substitution Method
Formulas
x - 3y = -9
2x + 7y = 8
Substitution method: Solve one equation for a variable, substitute in the other equation
Theorems
Substitution Method in solving systems of linear equations
Suitable Grade Level
Grades 8-10
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