SOLUTION: What are the dimensions of a rectangle if the length is 5 less than three times the width and the area is 78?!

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Question 601927: What are the dimensions of a rectangle if the length is 5 less than three times the width and the area is 78?!
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Let W be the width, then the length is L = 3W-5

W(3W-5) = 78

Solve by factoring, quadratic formula, or noting that 78 = 6*13 and 13 = 3(6) - 5. In any case, W = 6, L = 13.