Bună,:)
a,b,c,d=?
b=a+8
c=2b=d:4
d-b=77
c=2b=>c=2 (a+8)=> c=2a+16
d:4=c=>d=4c=>d=4 (2a+16)=>d=8a+64
d-b=77
(8a+64)-(a+8)=77
8a+64-a-8=77
7a+56=77
7a=77-56=>7a=21=>a=3
b=a+8=>b=3+8=>b=11
c=2b=>c=2×11=>c=22
d-b=77=>d-11=77=>d=77+11=>d=88
Mult succes la teme în continuare!
