In a parallelogram the sum of two adjacent angles is equal to 180º.
Then, the sum of given angles is equal to 180º:
[tex]127º+(17+x)º=180º[/tex]
Solve x:
[tex]\begin{gathered} 127+17+x=180 \\ 144+x=180 \\ x=180-144 \\ x=36 \end{gathered}[/tex]
Then, the value of x is 36
