# Math question

Discussion in 'General Off-Topic Chat' started by azoreseuropa, Jun 13, 2016.

# Math question

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1. ### azoreseuropaGBAtemp Guru

Member
Nov 6, 2002
Proud to be Portuguese but I am in USA.
I read it somewhere else and someone give me a challenge question:

3x + 9 = 861, what is the value of x?

Anybody know ? Out of curiosity because i do not know the answer to that.

Member
Dec 19, 2014
872/3

3. ### ElyosOfTheAbyssGBAtemp Addict

Member
Aug 20, 2015
Pretty obvious, x = 284

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4. ### MazaminGBAtemp Advanced Maniac

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Sep 4, 2014
Yes, it's 284, because 3x=852 so x=284

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5. ### FAST6191Techromancer

Reporter
Nov 21, 2005
Is this about a captcha/forum signup question or did you miss when you aimed for general off topic?

Otherwise yeah it seems to be a standard rearrange to find x equation.

6. ### azoreseuropaGBAtemp Guru

Member
Nov 6, 2002
Proud to be Portuguese but I am in USA.
Thank you. That's the answer. Much appreciated!

FAST6191,

Yes, that's correct.

7. ### Bimmel~ Game Soundtrack Collector ~

Member
Jan 28, 2014
But.. where is the challenge?

3x + 9 = 861

-9

3x = 852

:3

x = 284

Done! :-)

Last edited by Bimmel, Jun 13, 2016
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8. ### azoreseuropaGBAtemp Guru

Member
Nov 6, 2002
Proud to be Portuguese but I am in USA.
From other forum to register.

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9. ### Bimmel~ Game Soundtrack Collector ~

Member
Jan 28, 2014
I see. In that case, it is quite the challenge!

Never had that before.

10. ### MetabGBAtemp Regular

Member
Mar 23, 2013
Where dat ass is
So to work out 'x' (or whatever the unknown value is) you can just pull the numbers to the otherside to it ends up looking like
Code:
`x = 123`
So if we have 3x + 9 = 861, we can first MINUS 9, because to take 9 off one side, we must do it to the other, so take 9 away from 861
Now 3x = 852
So to get ride of x, we divide both sides by 3, so 3x / 3 = x and 852 / 3 = 284
so now were just left with x = 284, thus its the answer

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11. ### Bimmel~ Game Soundtrack Collector ~

Member
Jan 28, 2014
I would have some nice equations.

Seriously, they're quite fun if you know how to solve them basically.

12. ### azoreseuropaGBAtemp Guru

Member
Nov 6, 2002
Proud to be Portuguese but I am in USA.
Yeah, indeed.

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