Math Problem Statement

Solution

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Math Problem Analysis

Mathematical Concepts

Algebra
Supplementary Angles
Linear Equations

Formulas

m∠1 + m∠2 = 180° (Supplementary Angles)
8x + (x - 9) = 180
9x - 9 = 180

Theorems

Supplementary Angles Theorem

Suitable Grade Level

Grades 6-8