Respuesta :

Atix
-8 + 4 = 2u
-4/2 = 2u/2
-2 = u
-8=2u-4
First you add 4 to both sides in order to leave the 2u alone ( your goal is to get the u to be alone)
-4=2u
Then you divide each side by 2
-2=u
So you get -2