Solve sqrt:9x+55=x+5, Simplify and use comma to separate the answers

Answer 1

sqrt(9x+55) = x + 5,
Square both sides:
9x + 55 = x^2 + 10x + 25,
x^2 + x - 30 = 0,
(x - 5)(x + 6) = 0,

x - 5 = 0,
X = 5.

x + 6 = 0,
X = -6.

Solution Set: X = 5,-6.