Answer:
13/3
Step-by-step explanation:
An angle that is supplementary to a right angle is a right angle, so
- 5x + x + 54 = 90 [angles that add to form a right angle add to 90°]
- 6x + 54 = 90 [combine like terms]
- 6x = 26 [subtract 54 from both sides]
- x = 13/3 [divide both sides by 6]
