Question

afla x,y,z i.p. cu 2,3,5 si 2x+y+3z=58

Answer 1

2x=3y=5z=k
x=k/2
y=k/3
z=k/5
k+k/3+3k/5=58
Numitor comun 15
15k+5k+9k=870
29k=870 =>k=30
=>x=15
=>y=10
=>z=6

Answer 2

2x=3y=5z=k => x=k/2; y=k/3 si z=k/5. #> k+k/3+3k/5=58 => 29k=58*15 k=58*15/29=30 asadar x=15; y=10 si z=6