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15 May, 03:11

Solve the system of linear equations using elimination. - 2x - y = 3 - 9x - y = 17

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Answers (2)
  1. 15 May, 04:54
    0
    Answer: x=20/7 y=17

    Step-by-step explanation:

    1) Don't need to solve for y since y is already solved.

    2) Solve for x:

    -2x-17=-9x+3

    -2x-17+9x=-9x+3+9x (Add 9x to both sides)

    7x-17=3

    7x-17+17=3+17 (Add 17 to both sides)

    7x=20 (Divide both sides by 7)

    x=20/7, y=17
  2. 15 May, 04:58
    0
    x=20/7 y=17
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