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Is Y=-2x+5 Y=-2x-5 Parallel,intersect Or Coincide?

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    Parallel...
    Using the elimination method:
       y = - 2x + 5
    -- y = - 2x - 5
    ----------------------
    0 = 10 (false equation)

    using the substitution method:
    -2x + 5 = - 2x - 5
    5 = - 5 (false equation
    0 0

    Jorox 

    answered 3 months ago

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