To find \( x \) in this problem, we will focus on the equation provided by the angle labeled as \( 2x + 18^\circ \).

Given that this is a pentagon, the sum of the interior angles is 540°. Let's assume that all other angles in the pentagon are equal and focus on solving for \( x \).

### Step-by-Step Process:

1. **Sum of Interior Angles of a Pentagon:**
   The total sum of interior angles for a pentagon is:
   \[
   (5 - 2) \times 180^\circ = 540^\circ.
   \]

2. **Equation for the Angle:**
   One of the angles is given as \( 2x + 18^\circ \).

   We can now set up the equation assuming the remaining angles are part of the pentagon's internal angles, contributing to the total of 540°.

3. **Find \( x \):**
   To find \( x \), we equate the total sum of angles and solve for \( x \). Based on the missing information, one plausible assumption is that \( 2x + 18^\circ \) is one of the angles contributing to the overall sum.

Without more explicit data about the other angles, we cannot immediately solve this equation, but a standard process is needed to relate all angles and then isolate \( x \).

Would you like more details or clarification on any steps?

Here's a tip: **Review geometric relationships carefully when angle expressions are provided as algebraic terms.**

Learn how to find x in a pentagon angle equation 2x + 18°. This problem involves understanding the sum of interior angles of a pentagon and solving equations involving polygon angles. Suitable for students in Grades 7-9.

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