The value of x shown in the triangle ABC is determined as 25.
How to calculate the value of x?
The value of x is calculated by applying the following formula as shown below;
sum of opposite interior angles is equal to the exterior angle.
Based on the above principle, we will have the following equation.
3x + 50 = 5x
3x - 5x = - 50
- 2x = - 50
divide both sides of the equation by "-2", to obtain the value of x;
-2x / - 2 = - 50 / - 2
x = 25
Thus, the value of x shown in the triangle ABC is determined as 25.