Change the subject

Steps

1. Treat the new subject as the unknown.
2. Undo operations in reverse order: brackets and fractions first, then add/subtract, then multiply/divide.
3. Write the new subject on the left.

Want to check an answer? Fraction calculator shows every step.

Worked examples

v − u = at
    a = (v − u)/t

For the whole topic, read Number and algebra basics: key points, common mistakes and how the DSE tests it.

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