The answer is 54 degrees I took the exam I got it right
Answer:

Step-by-step explanation:
<u>Step 1: Multiply
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Answer: The correct answer is -1
Because the two angles on the right add to 180 degrees, we can create this system:

We can also prove that

, which, when solved, shows that

.
When plugged in to the original equation, we find that y = 105 degrees.
Step-by-step explanation:
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