document.write( "Question 737008: log(base7)x+log(base7)(x-1)=log(base7)12 \n" ); document.write( "

Algebra.Com's Answer #450115 by lwsshak3(11628) $\"\"$ $\"About$

You can put this solution on YOUR website!
log(base7)x+log(base7)(x-1)=log(base7)12
\n" ); document.write( " $\"log%287%2C%28x%29%29%2Blog%287%2C%28x-1%29%29=log%287%2C%2812%29%29\"$
\n" ); document.write( " $\"x%28x-1%29=12\"$
\n" ); document.write( " $\"x%5E2-x-12=0\"$
\n" ); document.write( "(x-4)(x+3)=0
\n" ); document.write( "x=-3 (reject, x>0)
\n" ); document.write( "x=4 \n" ); document.write( "

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