Question

Samuel paid $15.97 for gas this week, which was $3.47 less than he paid last week. How much had he paid last week?

Answer 1

$\begin{gathered} \text{The money paid by the Samuel this week is \ 15.97} \\ \text{The previous month he paid,} \\ \Rightarrow\text{ \ 15.97+ \ 3.47} \\ \Rightarrow\text{ \ 19.44} \end{gathered}$