document.write( "Question 1137839: Find the solution(s) of each system of equations.
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Algebra.Com's Answer #755716 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "Replace y in the first equation by \"3x\", based on the second equation.\r\n" );
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document.write( "You will get\r\n" );
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document.write( "3x = x^2 + 6x + 9,\r\n" );
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document.write( "x^2 + 3x + 9 = 0,\r\n" );
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document.write( "which has no real solutions, since the discriminant  d = b^2 - 4ac = 3^2 - 4*9 = 9 - 36 = -27 is negative.\r\n" );
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document.write( "The equation has two solutions in complex numbers\r\n" );
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document.write( " = .\r\n" );
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