document.write( "Question 244698: what is the answer to 20 - 4/5x >16 \n" ); document.write( "
Algebra.Com's Answer #178923 by checkley77(12844)\"\" \"About 
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20 - 4/5x >16
\n" ); document.write( "-4x/5>16-20
\n" ); document.write( "-4x/5>-4 cross multiply
\n" ); document.write( "-4x>-4*5
\n" ); document.write( "-4x>-20 divide by -4
\n" ); document.write( "x<-20/-4 Note: the > sign changes to a < sign when dividing by a negative value.
\n" ); document.write( "x<5 ans.
\n" ); document.write( "Proof:
\n" ); document.write( "Let x=4.9
\n" ); document.write( "20-4/5*4.9>16
\n" ); document.write( "20-19.6/5>16
\n" ); document.write( "-19.6/5>16-20
\n" ); document.write( "-19.6/5>-4
\n" ); document.write( "-3.92>-4
\n" ); document.write( " \n" ); document.write( "
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