Given:
There is a parallelogram given as below
and
[tex]\begin{gathered} \angle A=19\degree \\ \angle C=4x+3\degree \end{gathered}[/tex]Required:
we want to find the value of x
Explanation:
The angle property of parallelogram is
[tex]\begin{gathered} \angle A=\angle C \\ \angle B=\angle D \end{gathered}[/tex]use first condition
[tex]\begin{gathered} 19=4x+3 \\ 19-3=4x \\ 16=4x \\ 4=x \end{gathered}[/tex]Final answer:
4