document.write( "Question 1058224: Log3(x+18)-log3(x-2)=4 \n" ); document.write( "

Algebra.Com's Answer #673268 by Boreal(15235) $\"\"$ $\"About$

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That is log 3 [(x+18)/(x-2)]=4
\n" ); document.write( "raise everything to 3rd power
\n" ); document.write( "(x+18)/(x-2)=81
\n" ); document.write( "x+18=81x-162
\n" ); document.write( "180=80x
\n" ); document.write( "x=2.25 ANSWER
\n" ); document.write( "log 3(20.25) is log 10 20.25/log 10 3=2.738
\n" ); document.write( "log 0.25 is log 10 (0.25)/ log 10 (3)=-1.261, which is subtracted, making it positive and the result 4.
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