Final answer:
To write an equation based on the diagram, we need more information about the specific angles or sides involved. Without the diagram, it's not possible to determine the equation or the value of x.
Step-by-step explanation:
To write an equation based on the diagram, we need to identify the relationship between the angles or sides in the diagram. Based on the given reason, we can use the Angle Addition Postulate or the Linear Pair Postulate to write the equation. Without the diagram, it's not possible to determine the specific equation.
In order to find the value of x, we would need additional information such as the measurements of other angles or sides in the diagram. Without this information, we cannot determine the value of x.