Solve for p.

2 (p + 1) = 18

p = 8

Step-by-step explanation:

Subtract 18 from behind the equal sign to cancel it out. This leaves you with 2 (p+1) - 18 = 0.

Next you'll need to pull out the terms to work with the beginning of the problem. 2 (p+1) - 18 = 0 would turn into 2p - 16 = 2 (p - 8).

This would leave you with 2 = 0, but that's not true so continue on to the variable.

So p - 8 = 0 making the answer p = 8