Answer: 52°
Step-by-step explanation:
Two angles are referred to as complementary angles when the addition of the angles given equals to 90°.
In this case, since we are given two angles which are (2x + 18) and (6x – 8). We then add them and equate them to 90° which will be:
(2x + 18) + (6x - 8) = 90
2x + 18 + 6x - 8 = 90
Collect like terms
2x + 6x = 90 - 18 + 8
8x = 80
x = 10
Since ZB = 6x - 8 = 6(10) - 8 = 60 - 8 = 52°
