I think this is the graph for your answer, for the next question like this, try to use "Desmos"
3x+6=3(x+2)
3x+6=3x+6
minus 6 both sides
3x=3x
divide by 3
x=x
true
therefor all numbers work for x
there are infinite soltuions
Remove the radical by raising each side to the index of the radical.
x > 29/4
The answer to this question is 2 because 3-3=0×6=0+2=2