document.write( "Question 1088290: If 7x-5y=20and12x+5y=75 xy=?
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Algebra.Com's Answer #702548 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"7x-5y=20\"$
\n" ); document.write( " $\"12x%2B5y=75\"$
\n" ); document.write( "Add the equations together to eliminate $\"y\"$ ,
\n" ); document.write( " $\"7x-5y%2B12x%2B5y=20%2B75\"$
\n" ); document.write( " $\"19x=95\"$
\n" ); document.write( "Solve for $\"x\"$ , then use either equation to solve for $\"y\"$ .
\n" ); document.write( "Then solve for $\"x%2Ay\"$ \n" ); document.write( "

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