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22 September, 19:48

Solve the System by Substitution.

Write solution as an ordered pair. (x, y)

y = x + 1

3x + 7y = 57

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Answers (1)
  1. 22 September, 20:00
    0
    (5, 6)

    Step-by-step explanation:

    3x + 7y = 57

    Substitute y = x+1

    3x + 7 (x+1) = 57

    3x + 7x + 7 = 57

    3x + 7x = 57-7

    3x + 7x = 50

    10x = 50

    x = 5

    y = x+1 = 5+1 = 6

    (5, 6)
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