Find the value of 'x' in the equation `sqrt(4x+1)+sqrt(7-x)=6`.

Find the value of x in the equation ((sqrt(324))/(sqrt(49)))((sqrt(676))/(sqrt(169)))((126)/(sqrt(81)))=x

What is the value of x in the equation sqrt((1+x)/(x))-sqrt((x)/(1+x))=(1)/(sqrt(6)) ?

Find the solution of the equation sqrt(x^(2)-16)-(x-4)=sqrt(x^(2)-5x+4)

Find number of solutions of the equation sqrt((x+8)+2sqrt(x+7))+sqrt((x+1)-sqrt(x+7))=4

find the value of x - 1/x if x = 7-4sqrt5