If the solution to the equations x + y = 5 and x - y = 1 is (3, 2), which of the following pairs of

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A. 2x + 2y = 10 and 2x - 2y = 2

B. x + y = 6 and x - y = 0

C. 3x + 3y = 15 and 3x - 3y = 3

D. x + y = 4 and x - y = 2

E. None of the above

Answer: A. 2x + 2y = 10 and 2x - 2y = 2

Both equations in option a are multiples of the original equations, thus sharing the same solution.

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