document.write( "Question 60316: PLEASE HELP ME SOLVE THIS EQUATION 3K-5=7K-21 \n" ); document.write( "
Algebra.Com's Answer #41510 by tutorcecilia(2152)\"\" \"About 
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3K-5=7K-21
\n" ); document.write( "3K-3K-5=7K-3K-21
\n" ); document.write( "-5=4K-21
\n" ); document.write( "-5+21=4K-21+21
\n" ); document.write( "16=4K
\n" ); document.write( "16/4=4K/4
\n" ); document.write( "4=K
\n" ); document.write( ".
\n" ); document.write( "check by plugging (K=4) back into the original equation.
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