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24 December, 13:01

Find the value of x so that the function has the given value.

j (x) = - 4/5x+7; j (x) = - 5

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  1. 24 December, 13:31
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    Sub j (x) = - 5 into the first eq.

    -5 = (4/5x) + 7

    Add 7 to both sides

    2=4/5x

    Muliply both sides times 5x

    10x=4

    Divide both sides by 10

    X=4/10

    Simplify

    X=2/5
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