Answer:
x = 131°
y = 131°
Explanation:
Since m║n, x = y
To solve for x, you must know what the supplementary angle of x is
In order to figure out the supplementary angle of x, add the two angles summing it up to 180° (which is the total)
*Note that a straight line measures 180°)
where x is the supplementary angle of x
Subtract 49 from both sides

131°
that also means that y = 131°