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10 December, 20:36

Solve the system by the substitution method.

4x+y=0

8x-2y=6

+4
Answers (1)
  1. 10 December, 23:06
    0
    4x+y=0 so y = - 4x

    substitute y = - 4x into 8x-2y=6

    8x-2y=6

    8x - 2 (-4x) = 6

    8x + 8x = 6

    16x = 6

    x = 3/8

    y = - 4 (3/8) = - 3/2

    answer

    (3/8, - 3/2)
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