Răspuns :
a + b = 570008
a + a + b = 939892
a + b + a = 939892
↓
570008 + a = 939892
a = 939892 - 570008
a = 369884
b = 570008 - 369884 = 200124
a + a + b = 939892
a + b + a = 939892
↓
570008 + a = 939892
a = 939892 - 570008
a = 369884
b = 570008 - 369884 = 200124
Scrie ecuatiile asa cum iti sunt date,dupa care vei inlocui a2=a+a,iar a2+b=a+a+b,vedem ca a+b=570.008 si a+a+b=939.892,putem inlocui:a+570.008=939.892 si a va fi egal cu 939.892+570.008=369.884=>b=570.008-369.884=>b=200.124.Voi scrie si sub forma de exercitiu:[tex]a+b=570.008\\
a+a+b=939.892\\
a+570.008=939.892\\
a=939.892-570.008\\
a=369.884\\\\
369.884+b=570.008\\
b=570.008-369.884\\
b=200.124\\\\
Proba:369.884+200.124=570.008\\
~~~~~~~~~~~~369.882*2+200.124=939.892.
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