Answer:
10
Step-by-step explanation:
You can see that both triangles are the same except for one thing: one is smaller. Since 7 is half of 14 and both triangles are similar, x stands for 10. That is because 10 is half of 20! :D
Step-by-step explanation: 3
Answer:
The solution is 
Step-by-step explanation:
we have

Solve for x
Distribute right side
Remember that



Combine like terms right side

Adds 80 both sides


Divide by 17 both sides

Rewrite
