Respuesta:
x = 3, y = -2
Respuesta A
Explicación:
x + y = 1 L1
2x - 3y = 12 L2
2L1 - L2
2x + 2y = 2
-2x + 3y = - 12
5y = -10
y = -10 / 5
y = -2
x + y = 1
x = 1 - y
x = 1 - (-2)
x = 1 + 2
x = 3
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Verified answer
Respuesta:
x = 3, y = -2
Respuesta A
Explicación:
x + y = 1 L1
2x - 3y = 12 L2
2L1 - L2
2x + 2y = 2
-2x + 3y = - 12
5y = -10
y = -10 / 5
y = -2
x + y = 1
x = 1 - y
x = 1 - (-2)
x = 1 + 2
x = 3