## Math Problem Statement

## Solution

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## Math Problem Analysis

### Mathematical Concepts

Algebra

Linear Equations

### Formulas

2x = 8 \Rightarrow x = \frac{8}{2}

x + 3 = 8 \Rightarrow x = 8 - 3

-3 + x = 7 \Rightarrow x = 7 + 3

15 = 5x \Rightarrow x = \frac{15}{5}

x + 8 = 2 \Rightarrow x = 2 - 8

27 = 9x \Rightarrow x = \frac{27}{9}

x + 6 = -15 \Rightarrow x = -15 - 6

7x = -21 \Rightarrow x = -21/7

### Theorems

Basic algebraic principles

Inverse operations in linear equations

### Suitable Grade Level

Grades 6-8