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    Rearranging Formulas

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    Several formulas need to be rearranged so that a given variable ends up being the subject.

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    https://brainmass.com/math/basic-algebra/algebra-rearranging-formulas-211389

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    Make x the subject:
    (a)
    The goal is to have one side of equation only has x terms
    So add 18 to both sides:

    Divide 13 from both sides:

    (b)
    To solve for x, we need to first move x out from the denominator, so multiply (x + 18) to both sides:

    The answer in your scan is not correct.

    (c)

    Multiply x to both sides:

    Transpose the following ...

    Solution Summary

    It shows how to rearrange formulas and equations so that a given variable ends up being the subject. The solution is detailed and was rated '5/5' by the student who posted the question originally.

    $2.49

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