An angle and its compliment equal 90 degrees, an angle and its supplement equal 180 degrees, but using these two pieces of information we can solve your problem easily.
Start by Defining your angles...
Let X be your Angle
90 - X is your complement
180 - X is your supplement
Now we just need to write the equation
Now we do Algebra
combine like terms
Subtract 280 from both sides
Multiply Both sides by
So our angle measure is 136 Degrees