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Which of the following ordered pairs is the solution of the system x+y=5x+2y=7?​

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Problem:

Which of the following ordered pairs is the solution of the system x+y=5, x+2y=7?

Solution:

x +   y = 5

x + 2y = 7

x +   y = 5

x + 2y = 7

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     -y = -2

      y = 2

x + y = 5

x + 2 = 5

x = 5 - 2

x = 3

Answer:

x = 3

y = 2

The solution to the system is (3, 2)

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