Question 227731
The perimeter of a rectangle is 70 m. The length is 8 meters more than twice the width. Find the length and width. 


Step 1.  The perimeter P means adding up all the four sides of a rectangle.


Step 2.  Let w be the width.


Step 3.  Let 2w+8 be the length since the length is 8 meters more than twice the width


Step 4.  Then, P=w+w+2w+8+2w+8=70.


Step 5.  Solving yields the following steps


*[invoke explain_simplification "w+w+2w+8+2w+8=70" ]


For w=9 , then 2w+8=26 and P=2(9+26)=70 which is a true statement.


Step 6.  ANSWER:  The width is 9 meters and length is 26 meters.


I hope the above steps were helpful. 


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