Algebra-1

Question Analysis
This question tests the student's ability to solve a system of linear equations using the elimination method. 

Key Concept Explanation
The solution to a system of equations is an ordered pair that satisfies all the equations simultaneously. In this case, we need to find the value of that makes both equations true.

Step-by-step Solution
1. Start with the given system of equations:
2. Multiply the second equation by 2 to align the coefficients of :
3. Add the first equation to the modified second equation to eliminate :

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