Răspunsuri

2014-02-07T17:10:35+02:00
A+b=600
a:b=4
a=4b si inlocuim in suma
4b+b=600
5b=600
b=120  a=480
2014-02-07T17:33:36+02:00
X+y=600
x:y=4
x=4y
4y+y=600
5y=600
y=600:5
y=120
x+120=600
x=600-120
x=480