document.write( "Question 624160: 6 exponent x+1 equals 28....how to solve for x
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document.write( "Log (x+9) equals 1- log (x) \n" );
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Algebra.Com's Answer #392561 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! 6 exponent x+1 equals 28....how to solve for x \n" ); document.write( "Also \n" ); document.write( "Log (x+9) equals 1- log (x) \n" ); document.write( "** \n" ); document.write( "6^(x+1)=28 \n" ); document.write( "take log of both sides \n" ); document.write( "(x+1)log6=log28 \n" ); document.write( "x+1=log 28/log6 \n" ); document.write( "x=log 28/log6-1 \n" ); document.write( "x≈0.86 \n" ); document.write( ".. \n" ); document.write( "log(x+9)=1-logx \n" ); document.write( "log(x+9)+logx=1 \n" ); document.write( "log[(x+9)(x)]=1 \n" ); document.write( "convert to exponential form: \n" ); document.write( "10^1=x(x+9) \n" ); document.write( "10=x^2+9x \n" ); document.write( "x^2+9x-10=0 \n" ); document.write( "(x+10)(x-1)=0 \n" ); document.write( "x=-10 (reject, x>0) \n" ); document.write( "or \n" ); document.write( "x=1 \n" ); document.write( " \n" ); document.write( " |