Make x x\,x the subject of the formula ab=xx+3\displaystyle \frac{a}{b} = \frac{x}{x+3}ba=x+3x
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Rearranging Harder Formulae Questions
215 exam-style questions on Edexcel GCSE Maths Rearranging Harder Formulae. Each one has a worked solution and a mark scheme showing where the marks go.