Question 104853
First, let's find the angle, which we can call angle A, then we can find its complement (90-A) to answer the problem.
The supplement of A is 180-A and the complement of A is 90-A
From the problem description, we can write:
2(180-(90-A)) = (180-A)+60 Simplify this and solve for A
2(180-90+A) = 180+60-A
2(90+A) = 240-A
180+2A = 240-A Add A to both sides of the equation.
180+3A = 240 Now subtract 240 from both sides.
3A = 60 Finally, divide both sides by 3.
A = 20 degrees.  Now we can find the complement of A (90-A) as required by the problem.
90-A = 90-20 = 70 degrees.
The solution is:
The complement of the angle is 70 degrees.