AP Precalculusmediummcq1 pt
The system x + y = 3 and x − y = 1 has solution
A.x = 2, y = 1
B.x = 1, y = 2
C.x = 3, y = 1
D.no solution
Explanation
Core Concept
Adding gives 2x = 4.
Correct Answer
Ax = 2, y = 1
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