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The formula is as follows:

Multiply the height of the wall by the length of the wall.

Multiply the height of the door by the width of the door.

Subtract the total of the area of the door from the total of the area of the wall and the resultant number is the total square footage.

10 X 20 - (7 X3) =

You do the math.

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Q: If you had to paint a wall that was ten feet by twenty feet but the door is 7 feet by 3 feet what is the area in square feet that needs to be painted?
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