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1) 2x + 3y = - 3 (4)
2) 2x - 4y = 0 (3)
8x + 12y = - 12
6x - 12y = 0
----------------------
14x + 0y = - 12
14x = - 12
x = -12/14
x = -6/7
Reemplazo x en 2.
2x - 4y = 0
2 (-6/7) - 4y = 0
-12/7 - 4y = 0
- 4y = 12/7
y = 12/7-4/1
y = 12/-28
y = -3/7
Solución :
x = - 6/7
y = - 3/7