Answer:
x = 35 degrees
x + 5 = 40 degrees
3x = 15 degrees
Step-by-step explanation:
Given that the angle measures of a triangle is 180 degrees, we have
3x + (x + 5) + x = 180
3x + x + 5 + x = 180
5x + 5 = 180
Subtract 5 from both sides
5x + 5 - 5 = 180 - 5
5x = 175
Divide both sides by 5
5x/5 = 175/5
x = 35 degrees
x + 5 = 35 + 5 = 40 degrees
3x = 3(5) = 15 degrees