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    Solving Algebraic Equations for a Given Variable

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    1. Solve the following formula for R: I = E / R + r

    2. Sqrt of 5x - 9 = 4

    3. One bag of grass seed will cover an area of 300 square feet. If the width of the area is 5 ft less than the length, determine the dimensions.

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    https://brainmass.com/math/basic-algebra/solving-algebraic-equations-for-given-variables-37261

    Solution Preview

    1. Solve the following formula for R:
    I = E / R + r
    I - r = E / R
    (I-r)R = E
    R = E / (I-r)
    (Note, requiring R ≠ r)

    2. Sqrt of 5x - 9 = 4

    SQRT(5x) - 9 = 4
    Then SQRT(5x) = 4+9
    SQRT(5x) = ...

    Solution Summary

    Algebraic equations are solved for a given variable.

    $2.49

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