First you add 3 and 2 so that is 5 and then you subtract 5 from 9 so the answer is 4.
The answer is 58 degrees.
A = 180
b = 180
c = 180
180+180-180 = 180
First we expand the brackets:
-2a + 8 + 6a = 36
4a + 8 = 36
We then need to get the a's onto one side and the numbers onto the other:
4a = 28
We can then divide to get an x by itself:
a = 28/4 = 7
