Supplementary angles are two angles whose measures add up to 180 degrees.
If you've been given the angle measures in the diagram (which I can't see), you can find the value of \( x \) by using the equation:
\[ x + \text{(the other angle)} = 180 \]
If you provide the measure of the other angle or any equations related to \( x \), I can help you find the value of \( x \) specifically. Otherwise, you can rearrange the equation to find \( x \):
\[ x = 180 - \text{(the other angle)} \]
Based on your answer options, you'd substitute the measure of the other angle to determine which answer choice is correct. Please provide the relevant angle measures for further assistance!