document.write( "Question 311834: I need help solving these system of equations:\r
\n" ); document.write( "\n" ); document.write( "x^2+y^2=9
\n" ); document.write( "y=x+3\r
\n" ); document.write( "\n" ); document.write( "AND\r
\n" ); document.write( "\n" ); document.write( "x^2-y^2=9
\n" ); document.write( "2x-y=6 \n" ); document.write( "
Algebra.Com's Answer #222991 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
x^2+y^2=9
\n" ); document.write( "y=x+3
\n" ); document.write( "Sub for y in the 1st eqn
\n" ); document.write( "\"x%5E2+%2B+%28x%2B3%29%5E2+=+9\"
\n" ); document.write( "\"x%5E2+%2B+x%5E2+%2B+6x+%2B+9+=+9\"
\n" ); document.write( "\"2x%5E2+%2B+6x+=+0\"
\n" ); document.write( "x = 0, x = -3
\n" ); document.write( "---------------
\n" ); document.write( "AND
\n" ); document.write( "x^2-y^2=9
\n" ); document.write( "2x-y=6 --> y = 2x-6
\n" ); document.write( "Do it like the 1st one.
\n" ); document.write( " \n" ); document.write( "
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