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28 December, 18:38

Find the solution to the system of equations.

y=-4x-3

y=-2x+1

+5
Answers (1)
  1. 28 December, 20:11
    0
    ( - 2, 5)

    Step-by-step explanation:

    Given the 2 equations

    y = - 4x - 3 → (1)

    y = - 2x + 1 → (2)

    Since both equations express y in terms of x, equate the right sides, that is

    - 4x - 3 = - 2x + 1 (add 2x to both sides)

    - 2x - 3 = 1 (add 3 to both sides)

    - 2x = 4 (divide both sides by - 2)

    x = - 2

    Substitute x = - 2 into either of the 2 equations for corresponding value of y

    Substituting x = - 2 in (2), then

    y = - 2 ( - 2) + 1 = 4 + 1 = 5

    Solution is ( - 2, 5)
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