document.write( "Question 442179: using multiplication principle solve -12 > -4k \n" ); document.write( "

Algebra.Com's Answer #304982 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"+-12+%3E+-4k+\"$
\n" ); document.write( "Multiply both sides by $\"+-1%2F4\"$
\n" ); document.write( "and reverse the > sign
\n" ); document.write( " $\"+3+%3C+k+\"$
\n" ); document.write( "or, what is the same,
\n" ); document.write( " $\"+k+%3E+3+\"$
\n" ); document.write( "---------
\n" ); document.write( "check:
\n" ); document.write( "Suppose $\"+k+=+2.9+\"$
\n" ); document.write( " $\"+-12+%3E+-4k+\"$
\n" ); document.write( " $\"+-12+%3E+-4%2A2.9+\"$
\n" ); document.write( " $\"+-12+%3E+-11.6+\"$ not true
\n" ); document.write( "---------------
\n" ); document.write( "Suppose $\"+k+=+3.1+\"$
\n" ); document.write( " $\"+-12+%3E+-4k+\"$
\n" ); document.write( " $\"+-12+%3E+-4%2A3.1+\"$
\n" ); document.write( " $\"+-12+%3E+-12.4+\"$ true \n" ); document.write( "

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