Question

an is 205
a is 7
d is 6
find n?


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Answer 1

34

Step-by-step explanation:

dn+f-d

f,a= first term

d= commen difference

an= 205

dn+ f-d

6×n+ 7-6= 205

6n+1= 205

6n= 205-1

6n=204

n= 204/6

n= 34

Answer 2

Answer:

dn+f-d

f,a= first term

d= commen difference

an= 205

dn+ f-d

6×n+ 7-6= 205

6n+1= 205

6n= 205-1

6n=204

n= 204/6

n= 34.

Thanks..