If ∠2 and ∠4 are vertical angles, then they are equal in measure. Since their sum is given as 110°, you can set up the equation as follows:
Let \( x \) be the measure of each angle:
\[ x + x = 110° \]
This simplifies to:
\[ 2x = 110° \]
To solve for \( x \), divide both sides by 2:
\[ x = \frac{110°}{2} = 55° \]
So, the equation that solves for the value of each angle is:
\[ 2x = 110° \]
And each angle measures \( 55° \).