Respuesta:
x = 51/7 y = 33/7
Explicación paso a paso:
x + y = 12 => x = 12 - y
4x - 3y = 15
4(12-y) - 3y = 15 => -7y = -33 => y = 33/7 x = 51/7
RPTA: x = 51/7 y = 33/7
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Respuesta:
x = 51/7 y = 33/7
Explicación paso a paso:
x + y = 12 => x = 12 - y
4x - 3y = 15
4(12-y) - 3y = 15 => -7y = -33 => y = 33/7 x = 51/7
RPTA: x = 51/7 y = 33/7