Algebra-1

Question Analysis
This question tests the student's ability to set up and solve a system of equations based on a word problem. The key is to translate the given information into a mathematical equation and then solve it.

Key Concept Explanation
The problem involves setting up an equation based on the relationship between the number of boys and girls in a classroom. The total number of students is given, and the relationship between the quantities is provided.

Step-by-step Solution
1. Let be the number of girls,  be the number of boys. So g + b = 40.
2. The number of boys is 10 more than the number of girls, so the number of boys is b = .
3. The total number of boys and girls is 40, so the equation is .
4. Simplify the equation:

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