Answer:
x = 31 degrees
Step-by-step explanation:
First things first, all angles of a triangle add up to 180 degrees.
From here, we can put it into an equation:
2x + 3 + x + 1 + 3x - 10 = 180
Simplify
6x - 6 = 180
+ 6 + 6
6x = 186
Divide
x = 31
Hope this helps :)
