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    Algebra word problem

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    Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $21 one-time activation fee and charges 10 cents a minute. The second plan has no activation fee and charges 14 cents a minute. After how many minutes of long distance calls will the costs of the two plans be equal?

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    Solution Preview

    cost of calling by first plan = 21 + 0.1x

    cost of calling by second ...

    Solution Summary

    This solution explains the concept of using linear equation for solving algebra word problem.