Can some one awnser the following

W = 4

8 = 4 + w

You want to have variables on one side. To do this we need to take away 4 from both sides

8 = 4 + w
-4. -4

The answer would be 4 = w and because we end up with only one variable we don’t have to do anything else. It can also be written as w = 4

Is this from a

The surface area would be 576 because you multiply all the numbers then multiply that number by 6