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Word Problem : Solving an Equation by Substitution

In t years from 1995, the population (P, in thousands) of a community is described by P =30 - 12/t +1 . When will the community have a population of 27 thousand?

Solution Preview

To answer this question, you need to set P = 27

so then

P =30 - 12/t ...

Solution Summary

An equation is solved by substitution. The solution is detailed and well presented. The response received a rating of "5" from the student who originally posted the question.