document.write( "Question 210499: can you solve 5p+12 is less than 9p-20 \n" ); document.write( "

Algebra.Com's Answer #159034 by checkley77(12844) $\"\"$ $\"About$

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5p+12<9p-20
\n" ); document.write( "5p-9p<-20-12
\n" ); document.write( "-4p<-32
\n" ); document.write( "p>-32/-4 (note: the < sign changes to a > sign when divided by a negative value).
\n" ); document.write( "p>8 ans.
\n" ); document.write( "Proof:
\n" ); document.write( "Let p=9
\n" ); document.write( "5*9+12<9*9-20
\n" ); document.write( "45+12<81-20
\n" ); document.write( "57<61 \n" ); document.write( "

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