So, you need to do the same operation to each side.
Start out by subtracting 3 from each side
1/4 (20x+8) = -3
Then, multiply both sides by 4
40x+8 = -12
Then, subtract 8 from each side
40x = -20
divide both sides by 40 and you get
x=-1/2
Hope this helped!
Answer:
I think the answer is 1560
Step-by-step explanation:
Answer:Angles 1 and 3 are vertical angles
Step-by-step explanation:
first one: B)
180 - 35 = 145
second one:
ABC & DEC triangles are identical so:
![\frac{30}{10} = \frac{x}{8} \\ x = 24](https://tex.z-dn.net/?f=%20%5Cfrac%7B30%7D%7B10%7D%20%20%3D%20%20%5Cfrac%7Bx%7D%7B8%7D%20%20%5C%5C%20x%20%3D%2024)
third one:
![\frac{6}{8} = \frac{x}{16} \\ x = 12](https://tex.z-dn.net/?f=%20%5Cfrac%7B6%7D%7B8%7D%20%20%3D%20%20%5Cfrac%7Bx%7D%7B16%7D%20%5C%5C%20x%20%3D%2012)
It’s CD because it’s a longer line