Maths riddle, try to solve

[Kayla]

okay guys, I want to know if there's any solution to this riddle.

X + Y = Z
Z + X = A
Z = 9,841

I want one concrete solution (so only 1 solution is correct).

My thougts (Click to View)

tbh I think there is an infinite amount of possible solutions, am I right?

[Paul]

I simpely, dont get it.

Spoiler (Click to View)

Is it me, or am I just so dumb as shit ?

[KaraK [T]]

I bet it's actually easy to understand and solve with some algebra, but I'm not in the mood right now

[McGherkin]

9 + 0.841 = 9.841
9.841 + 9 = 18.841

X=9
Y=0.841
Z=9.841

However, X and Y could be any two numbers that add up to 9.841. For example:

5 + 4.841 = 9.841
9.841 + 5 = 14.841

X= 5
Y= 4.841

So I don't see how there can be one solution to this problem.

[Bradd]

Geek.

[Pipa]

Nevermind did something wrong.

[McGherkin]

I think there was a condition in the original equation which hasn't been mentioned, such as y=z

[Pipa]

Afaik this is a undetermined linear system of equations, so you have to guess a bit.

x+y=z
z+x=a -> Z=a-x

=> "a= 9,841+x" and "y=9,841-x"

Trying it with x=1
a=10.841
y=8,841

x+y=z -> 8,841-1 = 9,841
z+x=a -> 9,841+1 = 10.841

(2012-07-07 19:14)Michi Wrote:  tbh I think there is an infinite amount of possible solutions, am I right?

ye

[Nammi]

its not possible to solve 3 unknown values with only 2 equations. youll need at least as much equations as unknown values.

[Pipa]

(2012-07-07 21:11)Nammi Wrote:  its not possible to solve 3 unknown values with only 2 equations. youll need at least as much equations as unknown values.

Nah you end up with an unlimited amount of solutions as michi already wrote.

[Nammi]

ye sure if you apply the mathematical principle "guessing"

i was talking about an explicit solution

[Paul]

Im unsubcribing to this thread.

I dont get anything of this... Oh my "Vincent".

Spoiler (Click to View)

Boohoo, was that so important to open this spoiler and read this nonsense ?

[Pipa]

(2012-07-07 21:24)Nammi Wrote:  i was talking about an explicit solution

Ye

The stuff i remember slowly is that a linear system of equations can have 3 solutions.
1. no solution
2. exactly one solution
3. infinite amount of solutions

[Street]

This thread makes less sense than pauls signature.

[Paul]

Street just completed the bullcrap of this thread

[McGherkin]

It's called maths, not bullcrap

As above, there's an infinite range of values for X and Y (you can use -10000 and 10009.841).

[Nammi]

(2012-07-07 21:28)Pipa Wrote:  

(2012-07-07 21:24)Nammi Wrote:  i was talking about an explicit solution

Ye

The stuff i remember slowly is that a linear system of equations can have 3 solutions.
1. no solution
2. exactly one solution
3. infinite amount of solutions

yes, a linear view of the world would be nice. but theres so much crazy shit in math its unreal. If youre interested: google for the solution for the squareroot of a negative number for a little entry

[Turkey]

(2012-07-07 21:29)Street Wrote:  This thread makes less sense than pauls signature.

That made me laugh.