u=4t−21u = 4t - 21u=4t−21
Make t t\,t the subject of the formula.
Practise CIE IGCSE Maths Changing the Subject of a Formula with exam-style questions for Core and Extended tier. 20 questions, matched to the CIE IGCSE Maths (0580) specification and written in Paper 1 and Paper 3 (Core) or Paper 2 and Paper 4 (Extended) style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.