You can put this solution on YOUR website! 3/x + 4 = (x + 1)/x
so 3x=(x+1)*(x+4)
=> 3x = x^2+5x+4
=> x^2+2x+4=0
to solve we can just use the formula for solving a quadratic
or follow
=> (x+1)^2 + 3=0
=> x+1= + or - (3)^.5 i (i - imaginary)
so x= 1+root3 i and 1-root3 i