Question

Dau COROANA! x-y=10, x supra y = 5 supra 3. AFLATI x si y. Va rooooog

Answer 1

x-y=10
x/y=5/3=>x=5y/3
5y/3-y=10(amplificăm y cu 3)
5y/3-3y/3=10
2y/3=10
2y=30
y=30/2=15
x-y=10
x-15=10
x=25
Verificare:
25-15=10
x=25;y=15

Answer 2

x - y = 10 
x/y = 5/3  = > 5y = 3x  = > y = 3x/5 

x - 3x/5 = 10  / x5
5x - 3x = 50 
2x = 50 
x = 50 : 2 
x = 25
y = (3x25)/5 = 75/5 = 15 

25 - 15 = 10 
25/15 = 5/3