4MA0 Higher June 2017 Paper 3R Q2
2 Solve \(5x - 8 = x - 10\)
Show clear algebraic working.
(3)
| Scheme | Marks |
|---|---|
| \(5x - x = 8 - 10\) | M1 |
| \(4x = -2\) | M1 |
| −0.5 | A1 |
| (3) | |
| (3 marks) |
Notes
M1: for correct rearrangement with \(x\) terms on one side and numbers on the other in a correct equation or
the correct simplification of either \(x\) terms or numbers on one side in a correct equation
eg. \(4x - 8 = -10\) ; \(5x = x - 2\)
M1: or \(-4x = 2\) or \(4x + 2 = 0\) or \(-4x - 2 = 0\)
NB: This mark implies the previous M1
A1: oe e.g. \(-\dfrac{2}{4}\) dep on M1