Solve the following equations for the given variable.

$\displaystyle {d}={r}{t}$ for $\displaystyle {r}$, when $\displaystyle {d}={144}$ and $\displaystyle {t}={6}$. Write your answer as an equation, such as $\displaystyle {r}={5}$

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$\displaystyle {d}={r}{t}$ in general for $\displaystyle {r}$

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