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It's important to stick to the rules of algebra when transposing equations.

To keep a formula in balance, always perform the same operation to both sides of the equation.

**Study and practice**

- Read about solving literal equationsThis page from purplemath.com gives many examples showing how to solve an equation for a variable.
- Study transposition of equations, also called isolating a variableOnlinemathlearning.com has put together a page showing two methods for solving for a variable. The page also includes an excellent video.
- Study how to change the subject of a formulaRead several examples of formula transposition at BBC's bitesize maths, and try a few of your own.
- Quiz yourself on formula transpositionThis page offers five multiple choice questions on formula evaluation and transposition.
- Quiz yourself on algebraic manipulationThis page from the University of Sydney offers three quizzes on algebraic manipulation.

Use this search term to find additional resources:

*solving for a variableisolating a variabletransposing equationsequation transpositionchanging the subject of a formularearranging equations*

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