Question 1166261
{{{ log(2,(2x)) - log(2,(x+1)) = -3 }}}
{{{ log(2, (2x/(x+1))) = -3 }}}   (b/c  log(a/b) = log(a)-log(b))
{{{  2x/(x+1) = 2^(-3) = 1/8 }}}<br>

{{{  16x/(x+1) = 1 }}}<br>

{{{ highlight( x = 1/15 ) }}}