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31 August, 17:16

Solve.

y = 2x - 5

y = - 2x - 9

+4
Answers (1)
  1. 31 August, 17:40
    0
    (-1,-7)

    Step-by-step explanation:

    Substitute 2x-5 (from the first equation) as the y-value for the second equation, so you have something that looks like this:

    2x-5 = - 2x-9

    Add 2x to both sides: 4x-5 = - 9

    Add 5 to both sides 4x = - 4

    Divide both sides by 4: x = - 1

    Substitute - 1 for x in either equation (you'll get the same y-value)
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