To solve for e in the equation 17 + e + 11 = 56, we can start by simplifying the left-hand side by combining the like terms of 17 and 11:
17 + e + 11 = 56
28 + e = 56
Next, we can isolate the variable e on one side of the equation by subtracting 28 from both sides:
28 + e - 28 = 56 - 28
e = 28
Therefore, the solution for e is e = 28.
We can check our answer by substituting e = 28 back into the original equation:
17 + e + 11 = 56
17 + 28 + 11 = 56
56 = 56
Since the left-hand side equals the right-hand side, we can conclude that e = 28 is the correct solution to the equation.