SOLUTION: The perimeter of a rectangle is 7x+10. If the length of the rectangle is 5, express the width in terms of x.

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Question 210868This question is from textbook Elementary Algebra
: The perimeter of a rectangle is 7x+10. If the length of the rectangle is 5, express the width in terms of x. This question is from textbook Elementary Algebra

Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
P = 2(L+W) Substitute P = 7x+10 and L = 5.
7x%2B10+=+2%285%2BW%29
7x%2B10+=+10%2B2W Subtract 10 from both sides.
7x+=+2W Divide both sides by 2.
highlight%28W+=+%287%2F2%29x%29