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va rog dau coroana!si 5 stele,desigur si un multumesc!!!

Va Rog Dau Coroanasi 5 Steledesigur Si Un Multumesc class=

Răspuns :

a+b+c=144
b=5×a
c=a+b=>a+b=c
c+c=144
2c=144
c=144:4
c=36
a+b+36=144
a+b=144-36
a+b=108
a+5a+36=144
6a=144-36
6a=108
a=108:6
a=18
b=5×18
b=90
Verificare:18+90+36=108+36=144
Sper ca te.am ajutat!!!