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Sztanojidanastefanut
a fost răspuns

afla valorile a,b,c,stiind ca a+b=69 ,a+b=21 ,a+c=59 ,b=c=58

Răspuns :

Denisa43
a+b=69
60+9=69

a+b=21
19+2=21

a+b=59
50+9=59


Porecla7
b=c =58⇒a+b=69⇒60+9=69
a+b=21⇒19+2=21
a+b=59⇒50+9=59

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