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Ayunde en mate con el ejercicio de x+y=13 x-y=1

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Answer:

X=7

Y=6

x+y=13                                x-y=1

x=-y+13                              (-y+13)-y=1

x=-(6) +13                          -y+13-y=1

x=7                                   -2y=1-13

                                       y=-12/-2

                                       y=6

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