Question 941097
Two angles are complimentary if they sum up to 90 degrees

let the smaller angle be x and larger angle be y
From the first statement, y = 2*x + 6
Cause they are compliments, x + y = 90

Solving the systems of equation
2x - y = -6
x + y =90
*[invoke linear_substitution "x", "y", 1, 1, 90, 2, -1, -6 ]