Answer:
z = 11
Step-by-step explanation:
The slant line is straight, and the horizontal line just touches the slant one.
We know that, the sum of all angles formed on a straight line is 180°.
=> (9z + 7) + 74 = 180
=> 9z + 81 = 180
=> 9z = 180- 81
=> 9z = 99
=> z = 11
