Answer:
Each angle = 31 degree
Step-by-step explanation:
3x+10 = 5x-4
14=2x
7=x x=7
21+10=31
35-4=31
x=18
6-x=-12
Subtracting 6 from both sides
-x=-12-6
-x= -18
Dividing both sides by -1
Answer: (0.120)(x) = 78 ; x is 65