document.write( "Question 372610: Use the substitution method to find all solutions of the systems of equations.\r
\n" ); document.write( "\n" ); document.write( "x^2+y=9, x-y+3=o
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Algebra.Com's Answer #265494 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
1. $\"x%5E2%2By=9\"$
\n" ); document.write( "2. $\"x-y%2B3=0\"$
\n" ); document.write( "Add eq. 1 to eq. 2,
\n" ); document.write( " $\"x%5E2%2By%2Bx-y%2B3=9\"$
\n" ); document.write( " $\"x%5E2%2Bx%2B3=9\"$
\n" ); document.write( " $\"x%5E2%2Bx-6=0\"$
\n" ); document.write( " $\"%28x%2B3%29%28x-2%29=0\"$
\n" ); document.write( "Two solutions:
\n" ); document.write( " $\"x%2B3=0\"$
\n" ); document.write( " $\"highlight%28x=-3%29\"$
\n" ); document.write( "Then from eq. 2,
\n" ); document.write( " $\"-3-y%2B3=0\"$
\n" ); document.write( " $\"highlight%28y=0%29\"$ \r
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\n" ); document.write( " $\"x-2=0\"$
\n" ); document.write( " $\"highlight_green%28x=2%29\"$
\n" ); document.write( "Then from eq. 2,
\n" ); document.write( " $\"2-y%2B3=0\"$
\n" ); document.write( " $\"highlight_green%28y=5%29\"$
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