Question

Two complementary angles differ by 20. Find the angles.

Answer 1

let the angles be x and 90-x
then
$|(x) - (90 - x)| = 20 \\ |2x - 90| = 20 \\ 2x - 90 = 20 \\ or \: 2x - 90 = - 20 \\ x = 55 \\ or \: x = 35$

Answer 2

Answer is in attachment.