Răspunsuri

2014-11-03T16:20:02+02:00


a+b=86

a:b=3 rest 2, de unde a=b*3+2

inlocuim in a+b=86, reezulta b*3+2+b=86, b*(3+1)+2=86, b*4=86-2, b*4=84, b=84/4=21

a=86-21=65

2014-11-03T16:23:49+02:00
A+b=86
a:b=3 rest2
a=3xb+2
acum inlocuim:3xb+2+b=86
4xb+2=86
4xb=86-2
4xb=84
iar b=84/4
b=21
iar a=86-b
a=86-21
a=65