Question 415503
square both sides......

x + 7 = (x-5)^2

=> x+ 7 = x^2 - 10x +25

=> x^2 -11x + 18 = 0

=> x^2 -9x-2x +18= 0

=> x(x-9) -2(x-9) = 0

=> (x-2)(x-9) = 0

=> x =2 , 9

so,value of  x = 2, 9.