In aA figure with 5 sides or an irregular pentagon the sum of the interior angles is equal to 540°
then we have the next expression
[tex]\begin{gathered} 106+94+(x+5)+x+135=540 \\ 2x+340=540 \\ 2x=540-340 \\ 2x=200 \\ x=\frac{200}{2} \\ x=100 \end{gathered}[/tex]
x+5=100+5=105
x=100
