The following equation:

$\displaystyle {P}={114}{t}+{20000}$

gives the total population, $\displaystyle {P}$, of a small city $\displaystyle {t}$ years after 1956. Use the equation to determine when (what year) the population reached a population of 20912 people.

Answer: The population reached a total of 20912 people in the year .