h=5g−kh = 5g - kh=5g−k
g=−7g = -7g=−7 k=8k = 8k=8
Work out the value of hhh.
Practise OCR GCSE Maths Substitution with exam-style questions for Foundation and Higher tier. 100 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers 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.