Math Problem Statement

Solution

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations
Substitution Method

Formulas

y = 6 + 3x (solving for y in the second equation)
x + 3(6 + 3x) = -2 (substitute into the first equation)
10x + 18 = -2 (simplify)
x = -2
y = 0 (substitute x back to find y)

Theorems

Substitution Method

Suitable Grade Level

Grades 8-10