Question

If a=7,d=6,an=205findn

Answer 1

Answer:

first write full question the only I can solve

Answer 2

Answer:

n = 29.2857143

Step-by-step explanation:

an = 205

or, 7×n = 205

or, n = 205/7 = 29.2857143

[ I think you haven't written question correctly as there was no use of d]