SOLUTION: A rectangle has sides of 3x-4 and 7x+10. Find the expression that represents its perimeter.

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Question 94457: A rectangle has sides of 3x-4 and 7x+10. Find the expression that represents its perimeter.
Answer by kiljoy(51) About Me  (Show Source):
You can put this solution on YOUR website!
We'll use L and W for this as in length and width.
L=3x-4
W=7x%2B10
To find perimeter, use P=2L%2B2W
P=2%283x-4%29%2B2%287x%2B10%29
P=6x-8%2B14x%2B20
P=20x%2B12
That should do it, for you.