Answer:
x=6561
Step-by-step explanation:
We can solve this equation for x to get

Refer to the pic ...(◕ᴗ◕✿)✌️✌️
Angles 1 and 2 are adjacent, we know this because they are side by side. Meaning they are adjacent.
Angles 1 and 2 are also complementary because they add up to 90°
10 degrees less then 6 degrees C is -4 degrees C