Find the equations of the system shown on the graphing calculator screen.10
-10
A. 3x - y = 9
5x + y = 7
B. 5x + y = 7
x + 2y = -1
C. x + y = 1
x - 3y = -9
D. 3x + y = 9
5x - y = 7
Answer: A
Mathematics
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