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8 February, 02:47

Maths substitution y=2x-10

Y=-4x+8

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Answers (2)
  1. 8 February, 03:04
    0
    y=2x-10

    2x-10=-4x+8

    6x=18

    x=3

    y=2*3-10=-4
  2. 8 February, 03:21
    0
    Solve for the first variable in one of the equations, then substitute the result into the other equation ... (3,-4) ?
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