Solve the system mentally, without the use of a calculator or pencil-and-paper calculation. Try to visualize the graphs of both lines.x - 0y = 53x + y = 7
A. x = -5; y = 8
B. x = 5; y = -8
C. x = 3, y = 7
D. x = 5; y = 4
Answer: B
Mathematics
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Mathematics