\left\{ \begin{array} { l } { E = 6,625 \times 10 ^ { - 34 } \cdot u } \\ { u = \frac { 3.0 \times 10 ^ { 8 } } { 633 \times 10 ^ { - 9 } } } \\ { n \cdot E = 1 } \end{array} \right.
Solve for E, u, n
E=\frac{53}{168800000000000000}\approx 3.139810427 \cdot 10^{-16}
u=\frac{100000000000000000}{211}\approx 4.739336493 \cdot 10^{14}
n=\frac{168800000000000000}{53}\approx 3.18490566 \cdot 10^{15}
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