document.write( "Question 242900: How do you know when an equation has infinitely many solutions? How do you know when an equation has no solution? \n" ); document.write( "
Algebra.Com's Answer #177902 by Edwin McCravy(20055)\"\" \"About 
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How do you know when an equation has infinitely many solutions? How do you know when an equation has no solution?\r
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document.write( "When you simplify the equation, if you end up with no variables\r\n" );
document.write( "or unknowns and the resulting equation has only numbers in it, \r\n" );
document.write( "that is, no letters, then:\r\n" );
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document.write( "1.  If the resulting equation is true, such as 2 = 2 or 0 = 0\r\n" );
document.write( "    or -7 = -7, etc. then the equation has infinitely many solutions.\r\n" );
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document.write( "2.  If the resulting equation is false, such as 2 = 3 or 7 = 5\r\n" );
document.write( "    or -7 = 7, etc. then the equation has no solution.\r\n" );
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document.write( "Edwin
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