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La ex 3 !! Va rog , URGENT ! dau coroana !

La Ex 3 Va Rog URGENT Dau Coroana class=

Răspuns :

x drumul
x=20/100·X+30/100·(X-20/100·X) +560
X=X/5+12X/50+560
50X=10X+12X+28000
28X=28000
X=1000


x=20:100 ori x+30:100 ori (x-20:100ori x)+560
x=X:5+12x+560
x=50=x50=50x=10x+12x+28000
x=28000:28
x=1000