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8 October, 21:18

One equation of a pair of dependent linear equations is - 5x+7y=2. Write the second equation.

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  1. 8 October, 21:28
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    Step-by-step explanation:

    Any multiple of the given equation is also a dependent linear equation

    From the equation

    -5x+7y=2

    Multiplying all through by any number, say 2

    2 (-5x) + 2 (7y) = 2 (2)

    -10x+14y=4 is a dependent linear equation for - 5x+7y=2

    If you don't fancy using a multiple, you can write the gradient equation y=mx+c

    -5x+7y=2

    7y=5x+2

    Dividing all through by 7 gives the equation as

    y=5x/7 + 2/7
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