If the equations x + y = 4 and 2x + 2y = 8 are analogous, which of the following pairs of equations

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A. 3x + 3y = 12 and x + y = 4

B. 4x + 5y = 20 and 2x + 3y = 15

C. x - y = 1 and 2x - 2y = 2

D. 5x + 5y = 25 and 10x + 10y = 50

E. None of the above

Answer: D. 5x + 5y = 25 and 10x + 10y = 50

Both pairs consist of equations where the second is a multiple of the first, maintaining the same relationship.

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