cRPG

Off Topic => Spam => Topic started by: Shafol on November 18, 2011, 05:35:40 pm

Title: Mathematical Function
Post by: Shafol on November 18, 2011, 05:35:40 pm

3x + 5(y+1) = 3
2x - 3(y-x)=16


anyone here can get the right answer?  :idea:

Title: Re: Mathematical Function
Post by: Christo on November 18, 2011, 06:17:08 pm

*dies*

You have to determine y first, right? How I hated that shit.

Title: Re: Mathematical Function
Post by: Moncho on November 18, 2011, 06:17:34 pm

Or use WolframAlpha

Title: Re: Mathematical Function
Post by: Christo on November 18, 2011, 06:19:19 pm

What

Title: Re: Mathematical Function
Post by: Moncho on November 18, 2011, 06:20:46 pm

http://www.wolframalpha.com/input/?i=3x+%2B+5%28y%2B1%29+%3D+3%2C+2x+-+3%28y-x%29%3D16
It even draws it!

Title: Re: Mathematical Function
Post by: LordBerenger on November 18, 2011, 06:31:22 pm

Paul just pops in here and goes Math nerd rage on yall.

Title: Re: Mathematical Function
Post by: Nessaj on November 18, 2011, 06:38:28 pm

3x + 5(y+1) = 3
2x - 3(y-x) = 16

3x+5y+5 = 3
2x-3y+3x = 16

3x+5y = -2 /*3
5x-3y = 16 /*5

9x+15y = -6
25x-15y = 80

(add)

34x = 74
X = 37/17

3x+5y = -2
3* 37/17+5y = -2
111/17+5y = -2
5y = -2-111/17
5y = -145/17
Y = -29/17

Title: Re: Mathematical Function
Post by: Noctivagant on November 18, 2011, 07:32:56 pm

...and you solved the problem, your homework is done now you can play crpg all weekend.