Question 30438
10p - 14 - p = 4p - 9 

on taking like items together from both sides we get...

10p - p - 4p = -9 + 14

10p - 5p = 5

5p = 5 

on dividing both sides by 5 we get 

p = 1

Now if you wanna verify you answer ,,,you can put the values of p in the equation and if you get LHS=RHS,,,this means that you answer is correct..