cum calculam 4/5•(x+3/4)=2+x/2
Va rog repede!!!!!Dau coroana......


Răspuns :

4/5•(x+3/4)=2+x/2
4/5x+3/5 = 2+x/2
8x+6=20+5x
8x-5x=20-6
3x=14
x=14/3
4x/5 + 3/5 = 2 + x/2 <=>
8x + 6 = 20 + 5x <=>
3x=14 <=>
x=14/3