document.write( "Question 370133: 4x-y=9
\n" ); document.write( "x-3y=16 \n" ); document.write( "

Algebra.Com's Answer #263830 by Fombitz(32388) $\"\"$ $\"About$

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1. $\"4x-y=9\"$
\n" ); document.write( "2. $\"x-3y=16\"$
\n" ); document.write( "Multiply eq. 2 by (-4) and add to eq. 1,
\n" ); document.write( " $\"4x-y-4x%2B12y=9-64\"$
\n" ); document.write( " $\"11y=-55\"$
\n" ); document.write( " $\"highlight%28y=-5%29\"$
\n" ); document.write( "Then from eq. 1,
\n" ); document.write( " $\"4x%2B5=9\"$
\n" ); document.write( " $\"4x=4\"$
\n" ); document.write( " $\"highlight%28x=1%29\"$
\n" ); document.write( " \n" ); document.write( "

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