document.write( "Question 299536: what is the answer to, log(x+4)+log5=log10x \n" ); document.write( "
Algebra.Com's Answer #215234 by dabanfield(803)\"\" \"About 
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what is the answer to, log(x+4)+log5=log10x\r
\n" ); document.write( "\n" ); document.write( "By a law of logs we have log(x+4) + log(5) = log((x+4)*5) so we have:\r
\n" ); document.write( "\n" ); document.write( "log((x+4)*5) = log(10x) so\r
\n" ); document.write( "\n" ); document.write( "(x+4)*5 = 10x
\n" ); document.write( "5x + 20 = 10x
\n" ); document.write( "5x = 20
\n" ); document.write( "x = 4
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