In this case, we'll have to carry out several steps to find the solution.
Step 01:
data:
diagram
Step 02:
angles:
y + 57° + 61° = 180°
y = 180° - 57° - 61°
y = 62°
x + y + 67° = 180°
x + 62° + 67° = 180°
x = 180° - 62° - 67°
x = 51°
The answer is:
x = 51°