# Lesson: Tips for the Algebraic Approach

## Comment on Tips for the Algebraic Approach

### Hey Brent! The questions

Hey Brent! The questions related to this subject in the official guide are really hard and the solution chapter only offers really long and unhandy solutions. Could you maybe held with questions 202 and 210 from the problem solving module ?

### Hi Alicia,

Hi Alicia,

You can find various solutions to all of those questions here: https://gmatclub.com/forum/og-2017-forum-links-quantitative-questions-on...

### Hey Brent :) Can you give me

Hey Brent :) Can you give me your solutions and answer explanations to these exercises in the official 2019 guide: 204, 206, 208, 216, 225 ?
I didn't get the explanations in the guide.
Thanks a lot!

### Hi bartal,

Hi bartal,

I'm happy to help.

My solution to question 204: https://gmatclub.com/forum/for-any-positive-integer-n-the-sum-of-the-fir... (I have provided 3 different solutions to the question)

My solution to question 206: https://gmatclub.com/forum/a-sequence-of-numbers-a1-a2-a3-is-defined-as-...

At this point, I want to direct you to a page with links to solutions to all practice questions from the OG2019: https://gmatclub.com/forum/the-official-guide-for-gmat-review-268443.html

You will find that I have already answered most of those questions (you just have to look for me :-)
For those questions I have not answered, please review some of the experts' solutions, and let me know if you need any explanations.

Cheers,
Brent