document.write( "Question 181111: -18<-3x<21 \n" ); document.write( "
Algebra.Com's Answer #135795 by Mathtut(3670)\"\" \"About 
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-18<-3x<21--->-6>x>-7
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\n" ); document.write( "-3x<21----->x>-7
\n" ); document.write( "-3x>-18---->x<6
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\n" ); document.write( "(-6,7)
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