There is no way to solve this problem as you have stated it. That is because you gave no indication of any relationship between the three angles. If you simply forgot to mention that these are three angles of a triangle, then there is a solution. The sum of the measures of the interior angles of any triangle is 180°. So you can write:
And then you can just solve the equation for
But without the assumption I made or some other relationship between the three angles there is nothing that can be done with this.