document.write( "Question 829279: The length of the rectangle is three times it's width and the perimeter of the rectangle is 80 cm. What is the width of the rectangle ? \n" ); document.write( "
Algebra.Com's Answer #499732 by TimothyLamb(4379)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "x = 3y
\n" ); document.write( "2x + 2y = 80
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\n" ); document.write( "put the system of linear equations into standard form:
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\n" ); document.write( "x - 3y = 0
\n" ); document.write( "2x + 2y = 80
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\n" ); document.write( "copy and paste the above linear system in standard form into this matrix-method solver:
\n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php
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\n" ); document.write( "solution:
\n" ); document.write( "x = length = 30 cm
\n" ); document.write( "y = width = 10 cm
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\n" ); document.write( "Solve and graph linear equations:
\n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php
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\n" ); document.write( "Solve quadratic equations, quadratic formula:
\n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php
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\n" ); document.write( "Solve systems of linear equations up to 6-equations 6-variables:
\n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php \n" ); document.write( "
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