Question 1203921
<pre>
A supplement of an angle has a measure of 20 more than three times its complement. Find the measure of the angle. (The original angle.)

Let angle be A
Supplement of the angle: 180 - A
Complement of the angle: 90 - A
We then get: 180 - A = 3(90 - A) + 20
             180 - A = 270 - 3A + 20 
            - A + 3A = 270 + 20 - 180
                  2A = 110
Measure of the angle, or {{{highlight_green(matrix(1,5, A, "=", 110/2, "=", highlight(55^o)))}}}</pre>