The equation is p + (26)= 16.

p 26 = 16

According to additon property of equality: If a = b, then a + c = b + c.

p 26 + 26 = 16 + 26          (Add 18 to each sides)

   p = 16 + 26                           (Additive inverse property: 26 + 26 = 0)

  p = 42                                     (Add:  16 + 26 = 42)

Check:

To check the solution, substitute p = 42 in original equation.  

p 26 = 1642 26 = 16        

 16 = 16                                  (Subtract: 42 26 = 16 )

Compare the values, the equation is true. The solution is p = 42.

The value of p = 42.