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su mitad= x/2
su doble= 2x
su triple= 3x
Plateamos la ecuación:
x+x/2+2x+3x=55
2x+x+4x+6x=110
13x=110
x=110/13
mcm = 2
x + 4x + 6x = 110
11x = 110
x = 10