document.write( "Question 916662: Use the substitution method to find all solutions of the system of equations.\r
\n" ); document.write( "\n" ); document.write( "x2 + y2 = 72
\n" ); document.write( "x + y = 0\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Find larger value and smaller value \n" ); document.write( "

Algebra.Com's Answer #556190 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!
x + y = 0 0r y = -x
\n" ); document.write( "x^2 + (-x)^2 = 72
\n" ); document.write( "x^2 + x^2 = 72
\n" ); document.write( "2x^2 = 72
\n" ); document.write( "x^2 = 36
\n" ); document.write( "x = ą 6
\n" ); document.write( "x is 6 and -6 \n" ); document.write( "

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