2 to what power equals 7
If 2x = 7 then x = log2(7)
$${\mathtt{x}} = {{log}}_{{\mathtt{2}}}{\left({\mathtt{7}}\right)} \Rightarrow {\mathtt{x}} = {\mathtt{2.807\: \!354\: \!922\: \!057\: \!604}}$$
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