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4 July, 01:26

The pair of variables x=-3, y=8 is the solution to the equation 5x+by=17. Find the coefficient b.

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  1. 4 July, 04:12
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    X = - 3, y = 8

    Plug in the variables

    5 (-3) + b (8) = 17

    -15 + 8b = 17

    Add 15 to both sides of the equation. By doing this, you can eliminate the 15 on the left side.

    8b = 17 + 15

    8b = 32

    Divide 8 on both sides

    b = 4
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