Answer:
51 degrees
Explanation:
Since 57, y, and 61 are supplementary, their angle measures must add up to 180 degrees. Therefore:
57+y+61=180
y+118=180
y=180-118=62
Since the sum of the interior angles of a triangle is always 180 degrees:
x+62+67=180
x+129=180
x=51
Hope this helps!