Answer: x = 
Step-by-step explanation:
The exterior angle of a triangle = sum of the opposite interior angle.
The interior angles given are :
and 
Which are opposite to x + 72
Therefore :
x + 72 =
+ 
x + 72 = 
x =
- 
x = 
the answer is 772 because if you do 6+2+2+550+212=
In algebra it is fully possible for x to equal to zero. After you have 2x, just divide both sides by two, so it would be 2 divided by 0 and than you would have x=0 and that would be your final answer.
2x + 1 = 4x +1
-2x +1 = 1
-2x = 0
divide by -2
x=0
Answer:
12
Step-by-step explanation: