Moderate -0.8 This is a straightforward algebraic manipulation question requiring students to collect terms containing 'a' on one side, factorise, and divide. It's simpler than average A-level content as it only tests basic rearrangement skills with no conceptual depth or problem-solving required.
Question 6:
6 | 2c −2c
[a=] or as final answer
2− f f −2 | 3 | M1 for attempt to collect as and cs on
different sides and M1 ft for a (2 − f) or
7c−5c
dividing by 2 − f; allow M2 for
2− f
etc | 3