Question 924173
{{{   sqrt( X+7 ) +5=X  }}}
 {{{   sqrt( X+7 ) = X -5)  }}} Squaring Both Sides of the EQ
x + 7 = (x-5)^2
x + 7 = x^2 - 10x + 25
x^2 - 11x + 18 = 0
(x - 9)(x - 2) = 0
x = 2 , 9
whenever there is a √ or log involved, for ex., one needs to check to see if both solutions work