>See this: http://answers.yahoo.com/question/index?qid=20060911120122AABNVGI
>
>I've been playing with it, and I'm not sure how they got this.
>
>
>
>>>Solve for x. Show your work and check your answer:
>>>
>>>2x +3y = 6
>>
>>You forgot a second equation.
>>
>>Otherwise x & y can be anything.


x = 0
y = 2

2x0 = 0 + 3*2 = 6