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a+b+c=2400
a=b
b=5xc
a=? b=? c=?


Răspuns :

a+b+c=2400
a=b
b=5c
a=5c
5c+5c+c=2400
11c=2400
c=2400:11
c=218,(18)
b=5*218,(18)=1090,(90)
a=1090,(90)
V: 1090,(90)+1090,(90)+218,(18)=2400