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Jul 9, 2014 Old
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Join Date: May 2014
Jul 9, 2014 Old
3x-y=3
4x-3y=17


First X4 and second X3
12x-4y=12
12x-9y=51

And now

12x-4y - 12x -9y= 51-12
-13y=39
Y=-3
And now we put y=-3 in the second to find x
4x-3y=17
4x=8
X=2

xD luckily I found out what is the answer and luckily got in here :P
Last edited by experts; Jul 12, 2014 at 04:11 PM.
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Active Inventory Deactivated Inventory Trade History

Jul 9, 2014 Old
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Join Date: Nov 2011
Jul 9, 2014 Old
Originally Posted by experts View Post
3x-y=3
4x-3y=17

3x=3+
_________
FirstX4 and second X3
12x-4y=12
12x-9y=51

And now

12x-4y - 12x -9y= 12-51
_13y=-39
Y=3

And now we put y=3 in the first to find x
3x-3=3
3x=6
X=2


And now send me the prize

A few mistake.
Check your equations carefully.
Fix it before anyone else answer correctly.
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Jul 9, 2014 Old
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oh yeah pusga's Avatar
Join Date: Jun 2011
Jul 9, 2014 Old
id like to give this a try, even though im pretty sure experts already figured it out. ill solve it slightly differently

3x-y=3
4x-3y=17

multiply first by 4, second by 3

12x-4y=12
12x-9y=51

12x=4y+12
12x=9y+51

4y+12=9y+51
4y-9y=51-12
-5y=39
y=-7,8

3x-y=3
3x-(-7,8 )=3
3x=-4,8
x=-1,6

since 3*-1,6-(-7,8 )=3 it seems correct to me. results are different from experts's but it probably has multiple solutions
oh yeah
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Jul 9, 2014 Old
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Jul 9, 2014 Old
Originally Posted by pusga View Post
id like to give this a try, even though im pretty sure experts already figured it out. ill solve it slightly differently

3x-y=3
4x-3y=17

multiply first by 4, second by 3

12x-4y=12
12x-9y=51

12x=4y+12
12x=9y+51

4y+12=9y+51
4y-9y=51-12
-5y=39
y=-7,8

3x-y=3
3x-(-7,8 )=3
3x=-4,8
x=-1,6

since 3*-1,6-(-7,8 )=3 it seems correct to me. results are different from experts's but it probably has multiple solutions

Totally deviated from experts's equations.
I must say, his answer are barely right so far.
But there's still few mistake he just unaware.
First person to correcting experts's solution regardless in addition, would receive the prize.
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