Respuesta:
X = -2; Y = -1
Explicación paso a paso:
7X - 15Y = 1 (1)
-X - 6Y = 8 (2)
(1): 7X - 15Y = 1
+(2)x7: -7X - 42Y = 56
-------------------------------------
-57Y = 57
Y = 57/-57
Y = -1
Ahora reemplazo en la (1)
7X - 15Y = 1
7X = 1 + 15Y
7X = 1 + 15(-1)
7X = 1 - 15
7X = -14
X = -14/7
X = -2
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Respuesta:
X = -2; Y = -1
Explicación paso a paso:
7X - 15Y = 1 (1)
-X - 6Y = 8 (2)
(1): 7X - 15Y = 1
+(2)x7: -7X - 42Y = 56
-------------------------------------
-57Y = 57
Y = 57/-57
Y = -1
Ahora reemplazo en la (1)
7X - 15Y = 1
7X = 1 + 15Y
7X = 1 + 15(-1)
7X = 1 - 15
7X = -14
X = -14/7
X = -2