In the figure below, k || 1 and m || n. Find the values of x and z.

As shown in the figure m // n
the angles x and 63 are exterior supplementary angles
So, x + 63 = 180
so, x = 180 - 63 = 117
and the angles 63 and ( 4z - 29 ) are congruent
so,
[tex]\begin{gathered} 4z-29=63 \\ 4z=63+29 \\ 4z=92 \\ \\ z=\frac{92}{4}=23 \end{gathered}[/tex]So, the answer is :
[tex]\begin{gathered} x=117 \\ \\ z=23 \end{gathered}[/tex]