Răspunsuri

2014-01-26T20:43:49+02:00
A-b=624
a:b=4=>a=4b

4b-b=624
3b=624
b=208
a=4ori 208=832

2014-01-26T20:53:11+02:00
Ar fi faina o metoda figurativa!

a-b=624
a:b=4
---------------
?a
?b

a:b=4
a=4xb
inlocuim in diferenta
4xb-b=624
3xb=624
b=624:3
b=208

a=4x208
a=832

Verificare

832-208=624
832:208=4