Answer:
![x=16](https://img.qammunity.org/2020/formulas/mathematics/high-school/54vswjfry49nj26yghmmk853abj0561j72.png)
Explanation:
1. By definition, two angles are complementary if their sum is 90 degrees.
2. Keeping the information shown above on mind, you can write the following expression:
![2x+10+48=90](https://img.qammunity.org/2020/formulas/mathematics/high-school/vecpvry477ipwdl3sutsvmqpgyp07agvsy.png)
3. Now you must solve for x.
4. Therefore, you obtain that the value of x is the shown below:
![2x+58=90\\2x=90-58\\2x=32\\x=(32)/(2)\\\\x=16](https://img.qammunity.org/2020/formulas/mathematics/high-school/azw88xlm6d47cyhk0j94s5irnetz57ocou.png)