Question 515006
 {{{ 4*sqrt( t + 3 ) = 6 }}}
{{{ sqrt( t + 3 ) = 6/4 }}}
{{{ sqrt( t + 3 ) = 3/2 }}}
Square both sides
{{{ t + 3 = 9/4 }}}
{{{ t = 9/4 - 12/4 }}}
{{{ t = -3/4 }}}
check answer:
{{{ sqrt( -3/4 + 3 ) = 3/2 }}}
{{{ sqrt( -3/4 + 12/4 ) = 3/2 }}}
{{{ sqrt( 9/4 ) = 3/2 }}}
{{{ 3/2 = 3/2 }}}
There is also {{{ sqrt( 9/4 ) = -3/2 }}}
which is not a solution to problem