document.write( "Question 141118: How do you know when an equation has an infinitely number of solutions or when an equation has no solution? \n" ); document.write( "
Algebra.Com's Answer #102787 by rapaljer(4671)![]() ![]() You can put this solution on YOUR website! An equation has infinitely many solutions when, in the process of solving for the variable, you come down to a statement (for example, 0=0) that is ALWAYS TRUE. In math, this is called an IDENTITY. \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "An equation has NO SOLUTIONS when, in the process of solving for the variable, all of the variables subtract out, and you get a statement (for example, 0=3)that is NEVER TRUE. This is called a CONTRADICTION. \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "R^2 \n" ); document.write( " |