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March 26, 2017

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how many solutions does the system have?
x-2y=6
3x-6y=18
a)1
b)2
c)many
d)none

  • algebra1 - ,

    -2y=6-6
    -2y=0
    y=0 ans.
    Proof:
    3*6-6*0=18
    18+0=18
    18=18
    One solution: (6,0).

  • algebra1 - ,

    thanks Rezu

  • algebra1 - ,

    If you triple the first equation , you will get the 2nd
    so there is only one equation,

    and there is an infinite number of solutions.

    Rezu gave you only one
    here is another (2,2)
    and another (0,-3) etc

  • algebra1 - ,

    so infinite or just one?

  • algebra1 - ,

    come on!
    I already gave you more than one.
    How many points lie on a straight line??????

  • algebra1 - ,

    omg come down it was just a question!

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