Solve for p.

7+p+9=17

Enter your answer in the box.

First combine like terms.

7+9=16

16+p=17

Subtract 16 from both sides of the equation.

16-16+p=17-16

p=1

You can check to see if the solution is true by substituting 1 into the original equation.

7+1+9=17

17=17