Answer:
105 degrees
Step-by-step explanation:
since alternate interior angles are equal they have to be the same, so you just divide by two to get 105.
You can divide the whole expression by -3:

Recalling that

Let's compare the middle term:

So, we want to complete

Which differs from
by 16. So, if we add 16 to both sides, we have

Answer: 16............................
Answer: It would be 7. (0,7)