Respuesta:
x = 5
y = 0
Explicación paso a paso:
L1 3x - y = 15
L2 x + 2y = 5
2L1 + L2
6x - 2y = 30
x + 2y = 5
------------------------
7x = 35
x = 35 / 7
x + 2y = 5
2y = 5 - x
2y = 5 - 5
2y = 0
y = 0 / 2
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Respuesta:
x = 5
y = 0
Explicación paso a paso:
L1 3x - y = 15
L2 x + 2y = 5
2L1 + L2
6x - 2y = 30
x + 2y = 5
------------------------
7x = 35
x = 35 / 7
x = 5
x + 2y = 5
2y = 5 - x
2y = 5 - 5
2y = 0
y = 0 / 2
y = 0