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15 October, 09:07

How many solutions does the system of equations have x-2y=6 and 3x-6y=18

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Answers (2)
  1. 15 October, 11:08
    0
    Solve for x in X-2 (x=8)

    Substitute X=8 into 3x - 6y = 18 (24-6y=18)

    Solve for y in 24-6y=18 (y=1)

    X=8 and y=1
  2. 15 October, 11:33
    0
    2y=6

    3x-6y=18

    Divide first equation by 2: y=3

    Substitute y=3 into second equation: 3x-6 (3) = 18

    Solve for x: 3x=36 x=12

    Therefore there is only one solution: x=12 y=3
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