Algebra › Section B · Solving linear equations and inequalities › Topic B.3
Solving a formula for one variable
A formula is an equation with many letters, and you rarely get to choose which one you need. Solving a formula for a chosen variable is the same balance skill as before, with one new mindset: every other letter becomes a number.
In this topic
- Formulas are equations with many letters
- The key mindset: letters become numbers
- Worked example: the perimeter formula
- Worked example: temperature conversion
- Formulas with fraction coefficients
- Using a solved formula
- Worked example: angles of a triangle
- Solving the Pythagorean theorem for a leg
- Common mistakes to avoid
- Key takeaways
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