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Find all real numbers $t$ such that $\frac{2}{3} t - 1 < t + 7 \le -2t + 15$.

Give your answer as an interval.

 Dec 7, 2019
edited by Guest  Dec 7, 2019
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We can solve each inequality, which gives us the interval (-7/3, 18].

 Dec 8, 2019

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