document.write( "Question 337903: what is the answer to the inequality 18-4k<2(k+21) \n" ); document.write( "
Algebra.Com's Answer #242254 by checkley77(12844)\"\" \"About 
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18-4k<2(k+21)
\n" ); document.write( "18-4k<2k+42
\n" ); document.write( "-4k-2k<42-18
\n" ); document.write( "-6k<24
\n" ); document.write( "k>24/-6 (note the sign change when dividing by a negative value(
\n" ); document.write( "k>-4 ans
\n" ); document.write( "Proof:
\n" ); document.write( "Let k=-3.9
\n" ); document.write( "16-4*-3.9<2(-3.9+21)
\n" ); document.write( "16+15.6<2(17.1)
\n" ); document.write( "31.6<34.1
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