document.write( "Question 829319: the length of a rectangle is 8 cm. the perimeter is 18 cm. what is the area of the rectangle?\r
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Algebra.Com's Answer #499770 by TimothyLamb(4379)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "x = 8
\n" ); document.write( "2x + 2y = 18
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\n" ); document.write( "copy and paste the above linear system in standard form into this matrix-method solver:
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\n" ); document.write( "solution:
\n" ); document.write( "x = 8 cm
\n" ); document.write( "y = 1 cm
\n" ); document.write( "area = 8*1 = 8 sq.cm
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\n" ); document.write( "Solve and graph linear equations:
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\n" ); document.write( "Solve systems of linear equations up to 6-equations 6-variables:
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