Question 676412
the general rules are
{{{ log(a) + log(b)  = log( a*b ) }}}
and
{{{ log(a) - log(b)  = log( a/b ) }}}
{{{ log(1) = 0 }}}
{{{ log( x+3 ) = log( x+3 ) + log(x) }}}
{{{ log( x+3 ) - log( x+3 ) = log(x) }}}
{{{ log( (x+3)/(x+3) ) = log( x ) }}}
{{{ log( 1 ) = log(x) }}}
{{{ x = 1 }}}
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check answer:
{{{ log( 1+3 ) = log( 1+3 ) + log(1) }}}
{{{ log(4)  = log(4) + 0 }}}