SOLUTION: Carlos is building a screen door.the hight of the door is 1 foot more than twice its width. What is the width of the door if it is 7 feet high?

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Question 1107323: Carlos is building a screen door.the hight of the door is 1 foot more than twice its width. What is the width of the door if it is 7 feet high?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +w+ = the width in feet
The height is:
+2w+%2B+1+ feet
+2w+%2B+1+=+7+
+2w+=+6+
+w+=+3+
The width is 3 feet