HELP ASAP WILL MARK BRAINIEST!! Solve.

See below.

Step-by-step explanation:

Here, we have two (presumably) parallel lines cut by a transversal. The two expressions corresponds to alternate interior angles. Alternate interior angles are always equivalent when two parallel lines are cut by a transversal. In other words, the two expressions are equal to each other. Therefore:

EQUATION:

Now, solve for x to find the value of x:

So, the value of x is -6.

To find the angle measures, simply plug -6 as x back into the expressions:

Thus, each of the angle measures 56 degrees. As expected, they are equivalent.