deletions | additions       diff --git a/begin_equation_label_eq_age__.tex b/begin_equation_label_eq_age__.tex  index b660fa8..20b898c 100644  --- a/begin_equation_label_eq_age__.tex  +++ b/begin_equation_label_eq_age__.tex 
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\begin{equation}\label{eq:age}   \frac{\textrm{N_{1}}}{\textrm{ Y-value of $S_{1}$}} \frac{N_{1}}{n_{1}}  = \frac{\textrm{$N_{2}$ }}{ \textrm{ Y-value of $S_{2}$}} \frac{N_{2}}{n_{2}}  \end{equation}  From Equation () it was determined that the value of N for $S_{2}$ was $0.42 \mu\textrm{Curie}$. Then, we can rearrange Equation () to solve for t.