document.write( "Question 1043944: I have a problem where the perimeter and area of a rectangle are the same. The width of the rectangle is 3 and the length is x. I need to write an equation to solve for x to get the area and perimeter. I have tried but I keep coming up with equations that have two varibles, instead of just one (x), and I haven't yet learned how to find the value of x if there is another variable in the problem instead of two other numbers. \n" ); document.write( "
Algebra.Com's Answer #659157 by ankor@dixie-net.com(22740)\"\" \"About 
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a problem where the perimeter and area of a rectangle are the same. The width of the rectangle is 3 and the length is x. I need to write an equation to solve for x to get the area and perimeter.
\n" ); document.write( ":
\n" ); document.write( "Area = perimeter
\n" ); document.write( "L*W = 2L + 2W
\n" ); document.write( "Given that W=3
\n" ); document.write( "3L = 2L + 2(3)
\n" ); document.write( "3L - 2L = 6
\n" ); document.write( "L = 6 is the length
\n" ); document.write( "See if that checks out
\n" ); document.write( "3*6 = 2(6) + 2(3)
\n" ); document.write( "18 = 12 + 6 \n" ); document.write( "
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