EXPLANATION
We can see in the picture that it's a right triangle, so, the sum of angles should be equal to 180°.
90°+29°+ left angle = 180°
Isolating left angle = 180 - 90 - 29 = 61°
By the Law of Sines:

Multiplying both sides by Sin 29°:

Multiplying:

The answer is x= 8.87.