SOLUTION: length of a rectangle is 3cm longer than its width. if the perimetre of the rectangle is 26cm, what is the length?

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Question 329318: length of a rectangle is 3cm longer than its width. if the perimetre of the rectangle is 26cm, what is the length?
Answer by unlockmath(1688) About Me  (Show Source):
You can put this solution on YOUR website!
Hello,
Let's have x represent the width and length x+3. Now we can set up the following equation as:
2x+2(x+3)=26
Rewritten as:
4x+6=26
Subtract 6 and divide by 4 to get:
x=5
OK, we know the width is 5 cm and length is 8.
Make sense?
RJ
www.math-unlock.com