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Luego:
3x+2(x+1)=22
3x+2x+2=22
5x=20
x=4
Los números son:
Menor:4-1=3
Intermedio:4
Mayor:4+1=5
x + 3x + 3 + 2x + 4 = 22
6x= 22 - 7
x= 15:6
x = 5/2
los números son 5/2 . 21/2. 9
saludos