Question

Daca la triplul uni numar adunam 7,obtinem 22.Aflati numerele

Answer 1

(a x 3) + 7 =22 <=> a x 3 = 22- 7 <=> a x 3=15 <=> a = 15:3 <=> a=5

Answer 2

3a+7=22
3a=22-7
3a=15
a=15:3
a=5