Răspuns :
rate....X
gaini.......4X
rezolvare....
X+4X=30
5X=30
X=6-numarul de rate
4X=4*6=24-numarul de gaini
coronița te roog
gaini.......4X
rezolvare....
X+4X=30
5X=30
X=6-numarul de rate
4X=4*6=24-numarul de gaini
coronița te roog