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1) 2x + 3y = - 1 (1)
2) 3x - y = 0 (3)
2x + 3y = - 1
9x - 3y = 0
--------------------
11x + 0y = - 1
11x = - 1
x = -1/11
Reemplazo x en 2.
3x - y = 0
3 (-1/11) - y = 0
-3/11 - y = 0
- y = 3/11
y = - 3/11
Solución :
x = - 1/11
y = - 3/11