Answer:
x=35
Step-by-step explanation:
The sum of the angles of the triangle is 180
x+10 + x + 3x-5 = 180
Combine like terms
5x +5 = 180
Subtract 5 from each side
5x+5-5= 180-5
5x = 175
Divide each side by 5
5x/5 =175/5
35 is correct answer
