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Stanicageorgiana1983
a fost răspuns

a+ b +c = 9000

a+ b = 6000

b + c = 7500

a =

b =

c =​

Răspuns :

Robertmrz10

a+b+c=9000

6000+c=9000

c=9000-6000

c=3000

b+c=7500

b+3000=7500

b=7500-3000

b=4500

a+b=6000

a+4500=6000

a=6000-4500

a=1500

PROBA:

1500+4500+3000=6000+3000

=9000