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30 January, 13:07

Y = 3x - 10

y = 2x - 5

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Answers (2)
  1. 30 January, 16:03
    0
    Use subtraction method ...

    Y - 3X = - 10

    (-Y - 2x = - 5) - Y + 2X = 5

    so ...

    Y - 3X = - 10

    -Y + 2X = 5

    -X = - 5

    X = 5 Now fill in the 5 for X and Y = 5
  2. 30 January, 16:22
    0
    If you're looking for a solution for both equations and had a choice between the 3 ways of solving it, I would choose substitution for this problem. So ...

    2x-5=3x-10

    Move like terms to their own sides.

    Take 2x away from both sides, and add 10 to both sides. That should leave you with

    5=x

    Now that you have the x, plug it into the equation that works best for you to solve.

    That should be y=2 (5) - 5

    y=10-5

    y=5

    (5,5) is your solution.
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