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23 July, 16:34

What is the solution to the linear system y=-5x-21 and y=7x+15

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Answers (2)
  1. 23 July, 17:04
    0
    (-3, - 6).

    Step-by-step explanation:

    Since both expressions in x are equal to y:

    -5x - 21 = 7x + 15

    -12x = 36

    x = - 3.

    Plug x = - 3 into the first equation:

    y = - 5*-3 - 21

    = 15 - 21

    y = - 6.

    y =
  2. 23 July, 17:27
    0
    (-3,-6)

    Step-by-step explanation:

    Compair, then solve for x=-3

    then solve you should get y=-6
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