Respuesta :

HolmesNWatson
Five. Just divide 100 by four, to get 25, then subtract 20 from 25 to get your answer
nici0cookie
20 + x = 100/4
20 + x = 25
x = 25 - 20
x = 5

or you could put:
20 + 5 = 100/4

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