DAU COROANA

2(x+1/4)=1/2(x+5)


Răspuns :

2(x+1/4)=1/2(x+5)

2 x + 2/4 = x/2 + 5/2    
2 x - x/2 = 5/2 - 1/2 
· 2 x  - x = 4
4 x - x = 4 
3 x = 4 
⇒ x = 4/3 = 1 intreg si 1/3 = 1,(3)

2/4 = 1/2