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14 February, 16:13

Solve using the substitution method

(show work)

2x - y = 6

-3y = - 6x + 18

+1
Answers (1)
  1. 14 February, 16:29
    0
    Infinite solutions

    Step-by-step explanation:

    2x - y = 6

    -3y = - 6x + 18

    Before substituting, let us simplify the 2nd equation.

    -3y = - 6x + 18

    -y = - 2x + 6

    we now have

    2x - y = 6

    -y = - 2x + 6

    so ... we have equivalent equations

    Infinite solutions

    Substitute y = 2x - 6

    2x - (2x - 6) = 6

    2x - 2x + 6 = 6

    6 = 6

    Infinite solutions
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