25 POINTS What is the solution of the system of equations?7/2x−1/2y=9/23x−y=5
Question
Answer:
Answer:The answer to your question is: x = -2/5 y = -31/5Step-by-step explanation: 7/2x−1/2y=9/2 (1) Multiply by 2 3x−y=5 (2) 2 ( 7/2x−1/2y=9/2 ) = 7x -1y = 9 7x -1y = 9 (1) Multiply by (-1) 3x−y=5 (2) -7x + y = -9 3x − y = 5 10 x = -4 x = -4/10 x = -2/5 3(-2/5) - y = 5 -6/5 -y = 5 y = -6/5 -5 y = -6/5 - 25/5 y = -31/5
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