Respuesta :

randgh
let x be the first 
the second x +2 
the third x+ 4


twice the smallest  2x

three times the largest  3(x+4 )
 
2x + 3(x+4 )=42

2x +3x +12 = 42

5x= 30

x=6        the second is 8   the third is 10

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