Răspuns :
a+b=372
a=b/3–60
b/3–60+b=372
b/3+b=372+60
b/3+b=432|×3
3b+b=1296
4b=1296
b=1296:4
b=324
a=324/3–60
a=108–60
a=48
Verificare : 48+324=372
a=b/3–60
b/3–60+b=372
b/3+b=372+60
b/3+b=432|×3
3b+b=1296
4b=1296
b=1296:4
b=324
a=324/3–60
a=108–60
a=48
Verificare : 48+324=372