# How do you find the term n=24, given a_1=3 and d=-5?

Since ${a}_{n} = {a}_{1} + \left(n - 1\right) d$, you get
${a}_{24} = 3 + \left(24 - 1\right) \left(- 5\right)$
$= 3 - 115 = - 112$