A=a+b+c+d÷4 for c

Discussion in 'Calculator Requests' started by math_celebrity, Sep 16, 2017.

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  1. math_celebrity

    math_celebrity Administrator Staff Member

    A=a+b+c+d÷4 for c

    Assume A and a are different variables:

    Cross multiply:
    a + b + c + d = 4A

    Subtract a, b, and d from each side:
    a + b + c + d - (a + b + d) = 4A - (a + b + d)

    Cancel the a + b + d on the left side
    c = 4A - a - b - d
     
    math_celebrity, Sep 16, 2017
    #1

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