Răspuns :
a+b = 80
b>a
b= 4/5*a + 17
=> a+ 4a/5 +17 = 80
9a/5 = 63 |*5
=> 9a= 315 => a= 35 =) b= 80-35 = 45
b>a
b= 4/5*a + 17
=> a+ 4a/5 +17 = 80
9a/5 = 63 |*5
=> 9a= 315 => a= 35 =) b= 80-35 = 45
H+Y=80
2H+3y=35
(h+y)-(2h-3y)=45
h+4y=45
(h+4y)+h+y=125
5y=125
y=25=> h=55
2h-3y=35
110-75=35
Succes! :D