Răspuns :
a-b=23
a:b=5, rest 3⇒ a=5b+3
inlocuim in prima relatie (5b+3)-b=23
4b=23-3
4b=20
b=20/4=5
a=23+b
a=23+5=28
a:b=5, rest 3⇒ a=5b+3
inlocuim in prima relatie (5b+3)-b=23
4b=23-3
4b=20
b=20/4=5
a=23+b
a=23+5=28
|---|---|---|---|---|+3
|---| 23-3=20 20:4=5 un sg si nr mic
5x5+3=28 V=28-5=23
|---| 23-3=20 20:4=5 un sg si nr mic
5x5+3=28 V=28-5=23