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10 November, 19:01

Solve the system:

y = 4x + 6

-5x - y = 21

+1
Answers (1)
  1. 10 November, 19:18
    0
    Substitute y in second equation

    -5x - (4x+6) = 21

    -9x-6=21

    9x+6=-21

    9x=-27

    X=-3

    Solve for y:

    Y=4 (-3) + 6

    Y=-6
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