document.write( "Question 869658: 3X + 5y = 15 3x - 6y = -12 \n" ); document.write( "

Algebra.Com's Answer #524446 by Fombitz(32388) $\"\"$ $\"About$

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$\"3x%2B+5y+=+15\"$
\n" ); document.write( " $\"3x+-+6y+=+-12\"$
\n" ); document.write( "Subtract one equation from the other,
\n" ); document.write( " $\"3x%2B5y-3x%2B6y=15%2B12\"$
\n" ); document.write( " $\"11y=27\"$
\n" ); document.write( " $\"y=27%2F11\"$
\n" ); document.write( "Then use either equation to solve for $\"x\"$ .
\n" ); document.write( " $\"3x%2B5%2827%2F11%29=165%2F11\"$
\n" ); document.write( " $\"3x=%28165-135%29%2F11\"$
\n" ); document.write( " $\"3x=30%2F11\"$
\n" ); document.write( " $\"x=10%2F11\"$ \n" ); document.write( "

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