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1 September, 02:14

Y=2x+3

X-3y=6

What would the answer be using substitution method?

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Answers (1)
  1. 1 September, 03:04
    0
    x = y = - 3

    Step-by-step explanation:

    x - 3y = 6 = > x = 3y + 6

    y = 2x + 3 = > y = 2 (3y + 6) + 3 y = 6y + 12 + 3 y = 6y + 15 - 5y = 15 y = - 3

    x = 3y + 6 = > x = 3 x (-3) + 6 = - 3

    => x = y = - 3
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