Question

Va rog repede Problema 23
DAU coroana

Answer 1

a+b+c =77

a =4c  ;   c =a/4

b =a+5

a + a+5 + a/4 =77   numitor 4

4a+4a+20+a =308

9a =308-20

9a =288

a =32

b =a+5 =32+5 =37

c =a/4 =32/4 =8