Răspuns :
p+20%din p=432=> p+20p/100=432=> 120p/100=432=> p=432*100/120=> p=360 lei
x+20% din x=432
x+20x:100=432
120x:100=432
x=(432*100):120
x=43200:120
x=360 lei
x+20x:100=432
120x:100=432
x=(432*100):120
x=43200:120
x=360 lei