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2 January, 17:01

A pair of equations is shown below:

y = 7x - 8

y = 5x - 2

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Answers (1)
  1. 2 January, 17:26
    0
    Given equations are y = 7x - 8 and y = 5x - 2

    We can solve them easily using substion.

    Plug y = 7x - 8 into y = 5x - 2

    7x - 8 = 5x - 2

    or 7x - 5x = 8 - 2

    or 2x = 6

    or 2x/2 = 6/2

    or x=3

    Now plug x=3 into any of given equations say y = 5x - 2

    y = 5 (3) - 2=15-2=13

    Hence (3,13) is the final answer.
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