Answer:
X = 40°
Step-by-step explanation:
The sum of the interior angles in a triangle is 180°. This means that:
2X + 35 + 2X - 15 = 180° - we can simplify this
4X + 20 = 180° - now, subtract 20 from both sides
4X = 160° - finally, divide both sides by 4
X = 160 ÷ 4 = 40°
X = 40°
Hope this helps!
