Answer:

Step-by-step explanation:
we have
----> equation A
----> equation B
Multiply the equation B by 2 both sides
------> equation C
Adds equation A and equation C

Find the value of y



the solution is the point 
14 I think.You would subtract 15-8 which is 7 and then add 7 which is 14
It should be two if this is pre calc.
Answer:
11.6
Step-by-step explanation:
Add all numbers together and divide by 7.