document.write( "Question 1146989: Log(12)=log(x)+log(7×x) \n" ); document.write( "

Algebra.Com's Answer #768260 by Alan3354(69443) $\"\"$ $\"About$

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Log(12)=log(x)+log(7x)
\n" ); document.write( "Log(12)=log(x*7x) = log(7x^2)
\n" ); document.write( "7x^2 = 12
\n" ); document.write( "x^2 = 12/7
\n" ); document.write( "x = sqrt(12)/sqrt(7) = sqrt(7*12)/7
\n" ); document.write( "x = 2sqrt(21)/7
\n" ); document.write( "----------------
\n" ); document.write( "The negative square root is not allowed.
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