Question 694890
{{{ log(9,X-4) + log(9,x-4) = 1 }}}
{{{ 2log(9,X-4) = 1 }}}
{{{ log(9,X-4) = 1/2 }}}
{{{ X-4 = 9^(1/2) }}}
{{{ X-4 = 3 }}}
{{{ X = 7 }}}