Respuesta
21+8 = 29
Explicación paso a paso:
y+x= 11
y-x= 3
2y= 14
y=7 x= 4
2x= 8 3y= 21
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Respuesta
21+8 = 29
Explicación paso a paso:
y+x= 11
y-x= 3
2y= 14
y=7 x= 4
2x= 8 3y= 21