Two angles form a complementary angle (90 degrees). One angle is (7x - 4) and the other is 24. I set up my equation as (7x - 4) + 24 = 90, but I'm not sure how to solve. Can someone please help

(7x - 4) + 24 = 90

7x - 4 + 24 = 90
7x + 20 = 90
7x = 70
x = 10

If you have difficulty solving this simple equation I foresee nothing but
anguish in your further study of math.