Answer:
73°
Step-by-step explanation:
3x + x - 17 + 2x - 61 = 360°
6x - 78 = 360°
6x = 438°
x = 73°
You know that (x-17),(2x-61) and 3x add to 360 degrees.
That means that 6x - 78 =360
Add 78 to both sides-
6x = 438
Divide both sides by 5-
X=73 degrees
