Answer:
x = 66
Explanation:
The interior angles of a 4 sided shape always add up to 360 degrees. This means that the sum of the angles in the shape = 360. Using this information we can create an equation to solve for x
103 + 133 + 58 + x = 360
==> combine like terms
294 + x = 360
==> subtract both sides by 294
x = 66