document.write( "Question 1074080: the length of a rectangle is 7cm more than twice the width. the perimeter is 86cm. find the dimensions of the rectangle.\r
\n" ); document.write( "\n" ); document.write( "i tried this
\n" ); document.write( "86=2(7)+2w
\n" ); document.write( "86-14=2w
\n" ); document.write( "72/2=2w/2
\n" ); document.write( "
\n" ); document.write( "but i keep getting the wrong answer
\n" ); document.write( "

Algebra.Com's Answer #688816 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
the length of a rectangle is 7cm more than twice the width.
\n" ); document.write( "L = 2w+7
\n" ); document.write( " the perimeter is 86cm. find the dimensions of the rectangle
\n" ); document.write( "2L + 2W = 86
\n" ); document.write( "simplify, divide by 2
\n" ); document.write( "L + w = 43
\n" ); document.write( "replace L with (2w+7)
\n" ); document.write( "(2w+7) + w = 43
\n" ); document.write( "3w = 43 - 7
\n" ); document.write( "3w = 36
\n" ); document.write( "w = 36/3
\n" ); document.write( "w = 12 cm is the width
\n" ); document.write( "then
\n" ); document.write( "L = 2(12) + 7
\n" ); document.write( "L = 31 cm is the length
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "Check the solution with these dimensions
\n" ); document.write( "2(31) + 2(12) =
\n" ); document.write( "62 + 24 = 86
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