Răspunsuri

2014-03-02T19:20:02+02:00
A+b=245
a:b=4=> a=4b
5b+b=245
5b=245
b=245:5
b=49

a=4*49
a=196

Verificare:
196+49=245 ADEVARAT
2014-03-02T19:20:06+02:00
A:b=4⇒a=4b
inlocuiesc pe a
4b+b=245 ⇒5b=245⇒b=245:5=49 si a=49*4=196