9x-84=4x-18
5x=66
x=13.2
your number is 13.2
??? What is the rest of the question?
1. 70 2. 22 3. 55 4. 45 5. 65
Answer:
71
Step-by-step explanation:
in a triangle all the angles together equal 180°. So all you have to do is add 43 + 66=109 and then subtract that from 180