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10 April, 06:17

For what values of x does the function y=2x+13 take on a positive value? a negative value?

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  1. 10 April, 08:59
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    Hello,

    The answer is x = y-13 / 2 (everything after the x = is a fraction)

    How to solve;

    Start by subtracting 13 from both sides of y=2x+13, we do this to get the x on 1 side

    So now we have y-13=2x

    Next divide both sides by 2, we do this to get x by it self.

    y-13/2=x

    Now we flip the problem and there you have it!

    Edit: The x does not have a Pos or neg value, The only way to know what x is, is to solve for x.
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