October 2019 2 15 Report
Resolver las siguientes ecuaciones

A) x+y=8
x-y=2

B) 3x + y = -2
x + y = 13

C) -2x + y = -2
2x - y = 2

D) -3x + 2y = 3
-6x + 4y = 6

E) 3x + y = 11
2x + y = 9

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