Answer:
x = 20
Step-by-step explanation:
(5x + 35) + 45 = 180
These angles are opposites to each other so you know that together they equal 180.
Start off by adding 35 and 45. This gives you...
5x + 80 = 180
Then subtract by 80 giving you...
5x = 100
Then divide by 5. This gives you...
x = 20
I hope that this helps!!!
