Given:
Two lines intersect each other.
Consider the below figure attached with this question.
To find:
The value of x.
Solution:
If two lines intersect each other then the vertically opposite angles are congruent and their measures are equal.
In the given figure, the measures of two vertically opposite angles are (2x+29)° and (9x-13)°.
![2x+29=9x-13](https://img.qammunity.org/2022/formulas/mathematics/high-school/z8k6ceurc8sd8iazdnfskuvrjfsdtj315l.png)
![2x-9x=-29-13](https://img.qammunity.org/2022/formulas/mathematics/high-school/7s68a6s5je0yntcjnctqgp3vnn2krj9bvh.png)
![-7x=-42](https://img.qammunity.org/2022/formulas/mathematics/high-school/k5cywbrauwuk3ej5f2k35gm46m5doh2s2j.png)
Divide both sides by -7.
![x=(-42)/(-7)](https://img.qammunity.org/2022/formulas/mathematics/high-school/ssj7cozzvg8spsggofkpj9lbidul2yry9q.png)
![x=6](https://img.qammunity.org/2022/formulas/mathematics/high-school/tvyqqtl2povf6joesaaap8bx3ch1860cf7.png)
Therefore, the value of x is 6.