# For the sequence an = 3n - 5, what is the value of a10?

Oct 1, 2015

If ${a}_{\textcolor{red}{n}} = 3 \textcolor{red}{n} - 5$
${a}_{\textcolor{red}{10}} = 25$
${a}_{\textcolor{red}{10}} = 3 \left(\textcolor{red}{10}\right) - 5 = 30 - 5 = 25$