Răspunsuri

  • Utilizator Brainly
2014-04-13T11:59:14+03:00
A.I_____I+13
b.I_____I

 Suma este 23 . Aflam suma partilor egale . 
   23-13=10  
  10:2=5 ( numarul b ) 
   5+13=18 ( numarul a )

Verificare : 18+5=23 
2014-04-13T18:30:08+03:00
A+b=32
a-b=13 adunam ecuatile
a+b+a-b=45
2a=45
a=22.5
b=32-22.5
b=9.5