Respuesta:
Explicación paso a paso:
x + 3y = 9 => 3+3(2)=9
3(x - y)=(1)3
x + 3y = 9=> 3+3y=9 =>3y=6 => y=2
3x- 3y = 3
4x=12
x=3
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Respuesta:
Explicación paso a paso:
x + 3y = 9 => 3+3(2)=9
3(x - y)=(1)3
x + 3y = 9=> 3+3y=9 =>3y=6 => y=2
3x- 3y = 3
4x=12
x=3