Răspuns :
1) 40x/5 =2x/5 ; x-2x/5 =3x/5 ramas
2) 3/5 *3x/5 =9x/25
3) 96 lei
2x/5+9x/25 +96 =x numitor 25
10x+9x+2400=25x
25x-10x-9x =2400
6x=2400
x=400 lei
1) 40x/5 =2x/5 ; x-2x/5 =3x/5 ramas
2) 3/5 *3x/5 =9x/25
3) 96 lei
2x/5+9x/25 +96 =x numitor 25
10x+9x+2400=25x
25x-10x-9x =2400
6x=2400
x=400 lei