X = -3, 8
hope this helps
The answers be because it says DECREASED by 5 so it would be -5
-----98 with any quantity of any digits before the 9 .
The first one is the best answer
(7x - 23)° + (11x + 23)° = 180°
7x - 23° + 11x + 23° = 180°
18x = 180° / : 18
x = 10°