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27 September, 19:54

Solve the following system of equations by using the elimination method.

x - y = 11

2x + y = 19

(1, 10)

(-1,-1)

(12,2)

(10,-1)

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Answers (1)
  1. 27 September, 19:59
    0
    the answer is (6, 1)

    Step-by-step explanation:

    x² + y² - 12 x - 2 y + 12 = 0

    (x²-12x) + (y² - 2y) + 12 = 0

    (x²-2 (6) (x) + 6²) - 6² + (y² - 2y+1) - 1+12 = 0

    (x-6) ² + (y-1) ² = 5²

    the center of a circle is (6, 1)
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