Question 223704
The length of a rectangle is 3 in. more than its width. The perimeter of the rectangle is 30 in.


Step 1.  Perimeter P means adding up all 4 sides of a rectangle.


Step 2.  Let w be the width.


Step 3.  Let w+3 be the length.


Step 4.  Then, P=w+w+w+3+w+3=4w+6=30


*[invoke explain_simplification "4w+6=30" ]


With {{{w=6}}} and {{{w+3=9}}}.  And {{{P=2(6+9)=30}}} which is a true statement


Step 5.  ANSWER:  The width is 6 inches and the length 9 inches yards.


I hope the above steps were helpful.


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Good luck in your studies!


Respectfully,
Dr J