Finding an Unknown In an Arithmetic Sequence

Finding an unknown 'k' within an arithmetic sequence

[fabstems]

thank you so much, I'm staying home right now while the rest of my classmates are in school. we're learning this at the moment and my teacher sent me a powerpoint detailing what I needed to know, yet I did not understand it. Thank you so much, thanks to this video I can keep up with the rest of my class and not fall behind.

[Le-Fishe]

Thank you, this and your geometric sequence tutorial really helped me!

[CheesyWheezy]

Very helpful and taught very well. Thank you very much!

[wenomechainasama]

I did not understand the lectures from my teacher. You just made it easier for me. Thank you so much, ma'am. :))

[quinive]

Yo I tried using this formula but I wasnt able to get the sequence. The common difference isnt right. But I clearly followed the steps

[anonymous_creeper]

Whaaaa pls explain the lesson well
It's confusing