# Math question 

**URL:** https://forums.yoyoexpert.com/t/math-question/84466
**Category:** Unrelated Discussion
**Created:** [July 21, 2017, 12:22am UTC](https://forums.yoyoexpert.com/t/math-question/84466 "2017-07-21T00:22:36Z")
**Posts on this page:** 11
**Page:** 1

<div class="post-metadata">

### Author: ![Cannon](https://avatars.discourse-cdn.com/v4/letter/c/919ad9/32.png) [@Cannon](https://forums.yoyoexpert.com/u/Cannon)
#### Post date: [July 21, 2017, 12:22am UTC](https://forums.yoyoexpert.com/t/math-question/84466/1 "2017-07-21T00:22:36Z")

</div>

Maybe I’m just dumb but I got this math question wrong:  
If w\>1 which is greater:  
7w-4 or 2w+5

What would you guys say it is? Either can be greater, they can be equal or relationship can’t be determined.

---

<div class="post-metadata">

### Author: ![morgothaod](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/morgothaod/32/7951_2.png) [@morgothaod](https://forums.yoyoexpert.com/u/morgothaod)
#### Post date: [July 21, 2017, 1:44am UTC](https://forums.yoyoexpert.com/t/math-question/84466/2 "2017-07-21T01:44:16Z")

</div>

if w=2

7(2)-4= 10  
2(2)+5=9

I believe the answer is 7w-4

---

<div class="post-metadata">

### Author: ![Cannon](https://avatars.discourse-cdn.com/v4/letter/c/919ad9/32.png) [@Cannon](https://forums.yoyoexpert.com/u/Cannon)
#### Post date: [July 21, 2017, 1:54am UTC](https://forums.yoyoexpert.com/t/math-question/84466/3 "2017-07-21T01:54:24Z")

</div>

> [@morgothaod](#):
>
> if w=2
> 
> 7(2)-4= 10  
> 2(2)+5=9
> 
> I believe the answer is 7w-4

That’s what I thought! Apparently you can’t determine it though…

---

<div class="post-metadata">

### Author: ![morgothaod](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/morgothaod/32/7951_2.png) [@morgothaod](https://forums.yoyoexpert.com/u/morgothaod)
#### Post date: [July 21, 2017, 1:59am UTC](https://forums.yoyoexpert.com/t/math-question/84466/4 "2017-07-21T01:59:02Z")

</div>

I figured it would be a trick question.

---

<div class="post-metadata">

### Author: ![Cannon](https://avatars.discourse-cdn.com/v4/letter/c/919ad9/32.png) [@Cannon](https://forums.yoyoexpert.com/u/Cannon)
#### Post date: [July 21, 2017, 2:00am UTC](https://forums.yoyoexpert.com/t/math-question/84466/5 "2017-07-21T02:00:06Z")

</div>

> [@morgothaod](#):
>
> I figured it would be a trick question.

Exactly. Things can never be simple 😜

---

<div class="post-metadata">

### Author: ![morgothaod](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/morgothaod/32/7951_2.png) [@morgothaod](https://forums.yoyoexpert.com/u/morgothaod)
#### Post date: [July 21, 2017, 2:09am UTC](https://forums.yoyoexpert.com/t/math-question/84466/6 "2017-07-21T02:09:12Z")

</div>

Oh I see why it can’t be determined…

if w=1.1

7(1.1)-4=3.7  
2(1.1)+5=7.2

---

<div class="post-metadata">

### Author: ![Cannon](https://avatars.discourse-cdn.com/v4/letter/c/919ad9/32.png) [@Cannon](https://forums.yoyoexpert.com/u/Cannon)
#### Post date: [July 21, 2017, 2:13am UTC](https://forums.yoyoexpert.com/t/math-question/84466/7 "2017-07-21T02:13:25Z")

</div>

Thanks! I try to take too many short cuts I think… in this case, only trying one possibility (which happened to also be 2). Better do math when I’m not tired :wink:

---

<div class="post-metadata">

### Author: ![morgothaod](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/morgothaod/32/7951_2.png) [@morgothaod](https://forums.yoyoexpert.com/u/morgothaod)
#### Post date: [July 21, 2017, 2:15am UTC](https://forums.yoyoexpert.com/t/math-question/84466/8 "2017-07-21T02:15:55Z")

</div>

All you had to do was google your math question

> **[Prepare for the GRE General Test](https://www.ets.org/gre/test-takers/general-test/prepare.html)**
>
> Find free and low-cost GRE General Test prep materials, including the Official GRE Mentor course, videos, events, books and services and POWERPREP Practice Tests.

---

<div class="post-metadata">

### Author: ![AaronW](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/aaronw/32/49251_2.png) [@AaronW](https://forums.yoyoexpert.com/u/AaronW)
#### Post date: [July 21, 2017, 8:24pm UTC](https://forums.yoyoexpert.com/t/math-question/84466/9 "2017-07-21T20:24:52Z")

</div>

There have been a number of problems on the net recently similar to this. Read a really good article that without information from the one who developed the equation, there can be numerous answers to many mathematical problems/equations.

---

<div class="post-metadata">

### Author: ![EvanW](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/evanw/32/564_2.png) [@EvanW](https://forums.yoyoexpert.com/u/EvanW)
#### Post date: [July 21, 2017, 8:56pm UTC](https://forums.yoyoexpert.com/t/math-question/84466/10 "2017-07-21T20:56:38Z")

</div>

![](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/e/1/f/e1f9459f10da7ac9dafd1ba3557e5d7403775f64.png)  
On 1 \< w \< 9/5: 2x +5 is greater  
On 9/5 \< w \< inf: 7x-4 is greater

---

<div class="post-metadata">

### Author: ![Cannon](https://avatars.discourse-cdn.com/v4/letter/c/919ad9/32.png) [@Cannon](https://forums.yoyoexpert.com/u/Cannon)
#### Post date: [July 21, 2017, 9:08pm UTC](https://forums.yoyoexpert.com/t/math-question/84466/11 "2017-07-21T21:08:10Z")

</div>

I would like to take this moment to tell people still in high school that though you may not think it at this time, what you talk about in classes may actually be useful later in life :wink: Your plans may change over time and those skills you swore to never use may actually be very helpful.

Long story short, do your math homework and pay attention. Otherwise you end up asking questions like this on yoyo forums 😜
