The length of a rectangle is 3 times its width. If the length were increased by 2 inches and the width by 1 inch, the new perimeter would be 62 inches. What is the width and length of the rectangle?
{Width in., Length in.}

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The setup equation should be:
2(3x+2)+2(x+1)=62

If we solve that, the original width equals 7 while the length equals 21.

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