Answer: 10 degrees
Explanation:
we know that this is a right angle, meaning it equals 90 degrees. so now we put it into an equation.
6x + 5x - 20 = 90
Remember, to do Pemdas BACKWARDS, everything you do to one side you do to the other
(6x + 5x) - 20 = 90
11x - 20 = 90
ㅤㅤ+20ㅤ+20
11x = 110
(11x/11) = (110/11)
x = 10 degrees.