Answer:
x=-14
Step-by-step explanation:
The 2 angles are opposite of each other. This means that they are vertical angles, are they are congruent.
Since they are congruent, we can set them equal to each and solve for x.
9x+184=7x+156
To solve the equation, we want to find out what x is. In order to do this, we have to get x by itself. Perform the opposite of what is being done to the equation. Keep in mind, everything done to one side, has to be done to the other.
First, subtract 7x from both sides.
9x-7x+184=7x-7x+156
9x-7x+184=156
2x+184=156
Next, subtract 184 from both sides.
2x+184-184=156-184
2x=156-184
2x=-28
Finally, divide both sides by 2.
2x/2= -28/2
x=-28/2
x= -14
