SOLUTION: The length of a rectangle is 6 inches less than twice the width. If the perimeter of the rectangle is 90 inches, what are its dimensions?

Question 681695: The length of a rectangle is 6 inches less than twice the width. If the perimeter of the rectangle is 90 inches, what are its dimensions?
Answer by ReadingBoosters(3246) (Show Source): You can put this solution on YOUR website!
Given
l = 2w-6
p = 90
...
Knowing
p = 2l + 2w
...
90 = 2(2w-6) + 2w
Distribute the 2
90 = 4w - 12 + 2w
Combine like terms
90 = 6w - 12
90 + 12 = 6w
102 = 6w
Divide both sides by 6

l = 2(17)-6 = 34-6 =
.....................
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