Answer:
sum of an exterior angle is 360
2x+56+85+57+4x=360
6x+198=360
6x=360-198
6x=162
x=162/6
x=27
Since they are not like terms (not the same variables) you cannot simply so you leave it like that.✨ This applies for addition and subtraction only. It’s different with multiplication and division.✨
Answer:
1/5
Step-by-step explanation:
-8-(-10) 2 1
---------- = ------ = --------
1-(-9) 10 5
The second and third one are correct