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16 May, 09:30

Solve using

elimination 5y+3x=9 and 4y-3x=32

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Answers (2)
  1. 16 May, 11:46
    0
    (x, y) = (-124/27, 41/9)

    Step-by-step explanation:

    1) Add the equation to eliminate x.

    5y+3x=9

    4y-3x=32

    2) Add 5y and 4y.

    5y=9

    4y=32 - -> 9y=41

    3) Get y by itself by dividing 9 on both sides:

    y=41/9

    4) Substitute Value in the equation 5y+3x=9

    5 (41/9) + 3x=9

    5) solve for x

    x=-124/27
  2. 16 May, 13:11
    0
    Step-by-step explanation:

    5y + 3x = 9

    4y - 3x = 32

    using elimination method

    subtracting equation 1 from 2 gives

    y = - 23

    substitute to get value of X

    5 (-23) + 3X = 9

    -115 + 3x = 9

    3x = 124

    x = 41.33
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