Hi, glad to help u.
so, complimentary angles means two adjacent angles measured as a right angle which means two angles measured as 90 degrees!
So 7x-3 and x+13 is a pair of complimentary angles.
Then we can know(
(7x-3)+(x+13)=90
8x+10=90
x=10
so 7x-3=67
x+13=23
hope that helps u
