document.write( "Question 316438: In the system of equations {2x+6y=5
\n" ); document.write( " {x-3y=8, one coordinate of the solution is??? \n" ); document.write( "

Algebra.Com's Answer #226409 by Fombitz(32388) $\"\"$ $\"About$

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1. $\"2x%2B6y=5\"$
\n" ); document.write( "2. $\"x-3y=8\"$
\n" ); document.write( "Multiply eq. 2 by 2 and add to eq. 1,
\n" ); document.write( " $\"2x%2B6y%2B2x-6y=5%2B16\"$
\n" ); document.write( " $\"4x=21\"$
\n" ); document.write( " $\"highlight%28+x=21%2F4%29\"$
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\n" ); document.write( "Then use either equation to solve for y.
\n" ); document.write( " $\"2x%2B6y=5\"$
\n" ); document.write( " $\"4x%2B12y=10\"$
\n" ); document.write( " $\"21%2B12y=10\"$
\n" ); document.write( " $\"12y=-11\"$
\n" ); document.write( " $\"highlight%28y=-11%2F12%29\"$ \n" ); document.write( "

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