Algebra-1

Question Analysis
This question tests the student's ability to solve a simple system of linear equations using the addition method. The equations are straightforward, and the solution can be found by adding the two equations to eliminate .

Key Concept Explanation
The key concept here is the elimination method, where we add or subtract the equations to eliminate one of the variables, making it easier to solve for the other variable.

Step-by-step Solution
1. Add the two equations: