Question

1. (2x + 5)° 125° x=

Explanation:

Step1: Use vertical - angle property

Vertical angles are equal. So, $2x + 5=125$.

Step2: Solve the equation for $x$

Subtract 5 from both sides: $2x=125 - 5$, so $2x = 120$. Then divide both sides by 2: $x=\frac{120}{2}=60$.

Answer:

$x = 60$