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2x + 3y = 2 -->(2)
x - 2y = 8 -->(3)
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4x + 6y = 4
3x - 6y = 24
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7x = 28
x = 4
hallando y
x - 2y = 8
4 - 2y = 8
4 - 8 = 2y
-4 = 2y
-2 = y