Answer:
-13.53
Step-by-step explanation:
x=-13.53
Hope it helped
Answer:
No Solution
Step-by-step explanation:
If you grouped like terms, you would get 
Both <em>n's</em> would cancel each other out.
I hope this helps! (If it's wrong, then tell me, I'll try to find the correct answer...)
Answer:
15
Step-by-step explanation:
all triangles are 180 so 180-75-90 =15