4MA0 Foundation January 2012 Paper 1 Q18
18 Solve \(3(x - 4) = 5x + 8\)
Show your working clearly.
(3)
| Scheme | Marks |
|---|---|
| \(3x - 12 = 5x + 8\) | M1 |
| \(-20 = 2x\) oe | M1 |
| – 10 | A1 |
| (3) | |
| (Total 3 marks) |
Notes
M1: for \(3x - 12\)
M1: separating \(x\)’s and numbers
A1: cao (dep on M1)