Answer
Success!
w=4

↓Steps Explained:↓

Solve for w

12 + 2w = 20

Divide each side by 12

12w
12
=
  
2
12

Group constants

Group our constants 12 and 20.
subtract 12 from both sides

2w + 12 - 12 = 20 - 12

Cancel 12 on the left side:

2w = 8

Divide each side of the equation by 2

2w
2
=
  
8
2

w = 4

Final Answer

w=4
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