Hello.
Plug in the value of p:

Now, all we have to do is solve the equation for y.
First, let's add 10 to both sides:


Now, add 3y to both sides:

Divide both sides by 3:

I hope it helps.
Have a nice day.

Key word: sum
twice a number = 2n
Sum of that and 15 = 2n + 15
is = equals
Answer: 2n + 15 = 9
Answer:
Step-by-step explanation:
1) Red is the parent graph. 2) Blue is the reflection across the x-axis.
3) Green is multiplied by a factor of 5/3. (Click the imaged to see full size, i think.)
(And Thank Desmos graphing calculator)