Question
Solve: 4x − 7 = 21
Mark scheme (2 marks):
- Add 7 to both sides →
4x = 28— 1 mark (method) - Divide by 4 →
x = 7— 1 mark (correct answer) - Award full marks for correct answer with no working.
2 marks · take your time before peeking.
Sign up to try the next 30 problems
Save your streak, mark answers against the spec, and build a daily revision habit. Free during public beta — no card, no auto-renew.
Generated by TopMyGrade AI · cross-check official sources before relying on the mark-scheme phrasing.