document.write( "Question 1041122: xy=9
\n" ); document.write( "x-8y=-6 \n" ); document.write( "

Algebra.Com's Answer #656036 by Fombitz(32388) $\"\"$ $\"About$

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From eq. 2,
\n" ); document.write( " $\"x=8y-6\"$
\n" ); document.write( "Substitute into eq. 1,
\n" ); document.write( " $\"%288y-6%29y=9\"$
\n" ); document.write( " $\"8y%5E2-6y-9=0\"$
\n" ); document.write( " $\"%282y-3%29%284y%2B3%29=0\"$
\n" ); document.write( "Two solutions:
\n" ); document.write( " $\"2y-3=0\"$
\n" ); document.write( " $\"2y=3\"$
\n" ); document.write( " $\"y=3%2F2\"$
\n" ); document.write( "Then,
\n" ); document.write( " $\"x%283%2F2%29=9\"$
\n" ); document.write( " $\"x=6\"$
\n" ); document.write( "and
\n" ); document.write( " $\"4y%2B3=0\"$
\n" ); document.write( " $\"4y=-3\"$
\n" ); document.write( " $\"y=-3%2F4\"$
\n" ); document.write( "Then,
\n" ); document.write( " $\"x%28-3%2F4%29=9\"$
\n" ); document.write( " $\"x=-12\"$
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