To find the value of \( x \), we need to know the relationship between the given angles (37°, 53°, 139°, and \( x \)). Assuming that these angles are part of a geometrical figure like a triangle or a quadrilateral, there are specific rules we can apply.
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If these angles are the angles of a triangle, their sum must equal 180°:
\[ 37° + 53° + 139° + x = 180° \]
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If these angles are the angles of a quadrilateral, their sum must equal 360°:
\[ 37° + 53° + 139° + x = 360° \]
Let’s calculate both scenarios to determine \( x \):
Scenario 1: Angles in a Triangle
\[ 37° + 53° + 139° + x = 180° \] \[ 229° + x = 180° \] \[ x = 180° - 229° \] \[ x = -49° \quad (\text{Not possible in a triangle}) \]
Scenario 2: Angles in a Quadrilateral
\[ 37° + 53° + 139° + x = 360° \] \[ 229° + x = 360° \] \[ x = 360° - 229° \] \[ x = 131° \]
Thus, if the angles are part of a quadrilateral, \( x = 131° \).
Therefore, the value of \( x \) is: \[ \boxed{131°} \]