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24 January, 06:58

Solve each system by elimination

Z=2x-3y-7

Y=0

-2y+z=3

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Answers (1)
  1. 24 January, 07:25
    0
    Sub in for y for 0 and z for - 2x-3y-7

    -2 (0) + 2x-3 (0) - 7=3

    Then simplify

    2x-7=3

    Then add 7 to both sides

    2x=10

    Then divide by 2

    x=5

    Then sub in x and y for the equation for z

    Z=2 (5) - 3 (0) - 7

    Then simplify

    Z=10-7

    Then solve

    Z=3

    Y=0

    X=5
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