Transposing Formula: How to Make "l" the Subject

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SUMMARY

The discussion focuses on transposing the formula e = Blv to make "l" the subject. Participants clarify that to isolate "l," one must divide both sides of the equation by B and v, resulting in l = e / (Bv). The conversation also touches on fundamental concepts such as factors, products, and reciprocals, which are essential for understanding formula manipulation. This exchange highlights the importance of foundational algebra skills in solving for different variables in equations.

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  • Understanding of basic algebraic principles
  • Familiarity with the concept of transposing equations
  • Knowledge of factors and products in mathematics
  • Comprehension of reciprocals and their application
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  • Study the properties of multiplication and division in algebra
  • Learn about the application of reciprocals in solving equations
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Students returning to mathematics, educators teaching algebra, and anyone seeking to strengthen their skills in manipulating algebraic formulas.

ianNe5
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Hi all

Need some help on transposing formula's.

I know I've tranposed before, but was years ago.

Returning to college etc,
the formula is

e=Blv

whats confusing me is there are 3 values being multiplied by themselves, all my previous formula's have been V=IR ect, those I find easy.

How would I make "l" the subject

I know to make "v" the subject I would just divide both sides by Bl then cancel etc.

Thanks
 
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Why don't you apply the same strategy to solve for "I" or - in your terminology - to make "I" the subject...divide both sides by B v and then cancel ..
 
lol...yeah I am not with it today
 
to IanNe5 in post #1, do you understand "factor" and "product"? Then, also do you understand "reciprocal"?
 

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