Math Problem Statement
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Systems of Equations
Substitution
Formulas
x = y + z (simplified form from the first equation)
400 = 10x + 6y + 8z (simplified second equation)
Substitution of x = 3y
Theorems
Substitution method in systems of equations
Suitable Grade Level
Grades 8-10
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