document.write( "Question 305383: 2x + 4y = 28
\n" ); document.write( "x - 2y = 10 \n" ); document.write( "

Algebra.Com's Answer #218653 by Fombitz(32388) $\"\"$ $\"About$

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1. $\"2x+%2B+4y+=+28\"$
\n" ); document.write( "2. $\"x-2y+=+10\"$
\n" ); document.write( "Multiply eq. 2 by 2 and add to eq.1,
\n" ); document.write( " $\"2x%2B4y%2B2x-4y=28%2B20\"$
\n" ); document.write( " $\"4x=48\"$
\n" ); document.write( " $\"highlight_green%28+x=12%29\"$
\n" ); document.write( "Then use either equation to solve for y.
\n" ); document.write( " $\"2x+%2B+4y+=+28\"$
\n" ); document.write( " $\"2%2812%29%2B4y=28\"$
\n" ); document.write( " $\"24%2B4y=28\"$
\n" ); document.write( " $\"4y=4\"$
\n" ); document.write( " $\"highlight_green%28+y=1%29\"$ \n" ); document.write( "

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