Question

Two times Ms. Starks age plus Principal Jones age equals 140. Principal Jones's age is also Ms. Starks age plus 32. How old is Principal Jones?

Answer 1

`\begin{gathered} \text{If`
`\begin{gathered} \text{ Replacing the second equation on the first, we have} \\ 2S+(S+32)=140 \\ 3S+32=140 \\ 3S=140-32 \\ S=(108)/(3) \\ S=36 \\ \\ \text{Thus } \\ P=36+32 \\ P=68 \\ \\ \text{ Principal Jones is 68 years old!} \end{gathered}`