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Math Help - two unknowns in an equation

  1. #1
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    two unknowns in an equation

    I have an equation with 2 unknowns "a" and "b" - I need to find a value for "b"

    a=(b-c-(b*e))*d

    is this possible?
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  2. #2
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    Quote Originally Posted by pussycatdoll View Post
    I have an equation with 2 unknowns "a" and "b" - I need to find a value for "b"

    a=(b-c-(b*e))*d

    is this possible?
    Yes if d = 0 or e= 1

    I don't know others Tell the complete question
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  3. #3
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    Yes if d = 0 or e= 1

    I don't know others Tell the complete question
    In this case d = f/100
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    a=(b-c-(b*e))*d
    This is a real life money to KwH energy calculation i can assign values to c,d,e but have to be able to calculate an unknown a and an unknown b. UNfortunately my math isnt good enough to work out an equation that has two unknowns

    Can anybody help please?
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  5. #5
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    Quote Originally Posted by pussycatdoll View Post
    This is a real life money to KwH energy calculation i can assign values to c,d,e but have to be able to calculate an unknown a and an unknown b. UNfortunately my math isnt good enough to work out an equation that has two unknowns

    Can anybody help please?
    Unless you have another equation that relates a and b, the best you can do in general is to solve for one of the unknowns in terms of the other unknown.
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  6. #6
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    Unless you have another equation that relates a and b, the best you can do in general is to solve for one of the unknowns in terms of the other unknown.
    I thought that was the case any chance of posting up the calculation so I can see if its workable?

    Thanks
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  7. #7
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    Post them..
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