document.write( "Question 237624: what is a test value to determine whether or not a problem is a solution? \n" ); document.write( "
Algebra.Com's Answer #174741 by stanbon(75887)\"\" \"About 
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what is a test value to determine whether or not a problem is a solution?
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\n" ); document.write( "If you had the inequality x < -2
\n" ); document.write( "a test value could be ANY number.
\n" ); document.write( "If you select x = 7 you would substitute that for x and see if you
\n" ); document.write( "get a true statement. For example,
\n" ); document.write( "7 < -2
\n" ); document.write( "That is not true so you would conclude that 7 is not in the solution
\n" ); document.write( "set for the inequality.
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\n" ); document.write( "Further, since you might realize that 7 is greater than -2 you
\n" ); document.write( "could conclude that ANY number greater than -2 is not in the
\n" ); document.write( "solution set.
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\n" ); document.write( "Bottom Line: The test number can be ANY number. You substitute it
\n" ); document.write( "and see if it works. If it doesn't, it's not in the solution set.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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