Răspunsuri

2014-08-25T20:30:50+03:00
A+i=50

a+13=i-25

a=i-25-13

a= i-38

i-38+i=50

2i=50+38

2i=88

i= 44 lei are Ina

a=50-44
a=6 lei are Ana
2014-08-26T00:06:10+03:00
Fie x=suma egala pe care ar avea-o
x-13-bani are Ana9
x+25-bani are Ina
x-13+x+25=50
2x`+12=50
2x=38
x=19
19-13=6(bani are ana)
19+25=44(bani are ina