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### 解析题目

以下是从文档中提取的问题及其详细解析：

1. **Solve the equation:**
   \[
   2x + 3 = 7
   \]
   **Solution:**
   \[
   2x + 3 = 7 \implies 2x = 7 - 3 \implies 2x = 4 \implies x = \frac{4}{2} \implies x = 2
   \]
   Therefore, the solution is \( x = 2 \).

2. **Evaluate

Learn how to solve the equation 2x + 3 = 7 with a detailed step-by-step solution. This problem covers key algebraic concepts, including linear equations and their solutions. Suitable for students in Grades 7-9.

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