Make x x\,x the subject of the formula x(2+a)=b(x+3)x(2 + a) = b(x + 3)x(2+a)=b(x+3) Hence find x x\,x when a=2a=2a=2 and b=1b=1b=1.
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Markscheme
Rearranging Harder Formulae Questions
215 exam-style questions on Eduqas GCSE Maths Rearranging Harder Formulae. Each one has a worked solution and a mark scheme showing where the marks go.