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15 December, 00:38

What is the solution to the system of equation?

y = 1.5x - 4

y = - x

+5
Answers (1)
  1. 15 December, 01:33
    0
    We can solve this by using substitution method:

    instead of y put - x in the first equation:

    y = 1.5x - 4 = > - x = 1.5x - 4

    -x + x = 1.5x - 4 + x

    0 = 2.5x - 4

    0 + 4 = 2.5x - 4 + 4

    2.5x = 4

    x = 4/2.5

    x = 1.6 and y = - 1.6
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