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21 May, 13:17

Solve each system by elimination

10) - 4x+9y=9

x-3y=-6

+3
Answers (1)
  1. 21 May, 14:53
    0
    Multiply the second equation by 3

    -4x+9y=9

    3x-9y=-18

    add the equations together

    -x=-9 Simplify

    x=9

    now plug in your x value

    (9) - 3y=-6 Simplify

    -3y=-6-9

    -3y=-15

    y=5
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