Answer:
p=6
Explanation:
We are given the equation:

We want to find p, so we must isolate p on one side of the equation.
First, combine like terms on the left side of the equation. Both terms have the variable "p" and can be added.


p is being multiplied by 9. The inverse of multiplication is division. Divide both sides of the equation by 9.



Let's check our solution. Plug 6 in for p and solve.




This checks out, so we know our solution is correct.
The solution is 2p+7p=54 is p=6