Respuesta :
On opening the brackets;
x-3-2x+12=-5
Putting like terms together;
x-2x-3+12=-5
-x+9=-5
-x=-14
x=14
x-3-2x+12=-5
Putting like terms together;
x-2x-3+12=-5
-x+9=-5
-x=-14
x=14