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12 October, 08:56

Find the input (s) when the output is - 3

F (x) = 3x+5

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  1. 12 October, 12:10
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    Since the output is - 3, set the whole equation equal to - 3 to find the input.

    -3 = 3x + 5. Subtract 5 from each side.

    -8 = 3x. Divide each side by 3.

    - 8/3 = x

    The input for - 3 is - 8/3
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