Given data:
The given figure.
The expression for the supplementary angles is,
[tex]\begin{gathered} (x+1)^{\circ}+(x-3)^{\circ}=180^{\circ} \\ 2x-2=180 \\ 2x=182 \\ x=91 \end{gathered}[/tex]
The expression for the vertically opposite angles is,
[tex]\begin{gathered} y^{\circ}=(x+1)\circ \\ =(91+1)^{\circ} \\ =92^{\circ} \end{gathered}[/tex]
Thus, the angle y is 92 degrees.
