Răspuns :
Salut,
x•7/3 = x+20
7x/3 = x+20
7x = 3x+60
7x-3x = 60
4x = 60
x = 60/4
x = 15.
Succes! :3
x•7/3 = x+20
7x/3 = x+20
7x = 3x+60
7x-3x = 60
4x = 60
x = 60/4
x = 15.
Succes! :3