1MA0 Foundation June 2017 Paper 1 Q21
21 Solve \(4(x + 3) = 2x + 8\) (3)
| Answer | Mark | Notes |
|---|---|---|
| \(-2\) | 3 | M1 for expanding brackets e.g. \(4x + 12\ (= 2x + 8)\) or divide by 4 as a first step e.g. \(x + 3 = \dfrac{2x}{4} + \dfrac{8}{4}\) M1 ft their equations which have to be of the form \(ax + b = 2x + 8\) or \(x + 3 = ax + b\) for isolating terms in \(x\) and numbers e.g. \(4x - 2x = 8 - 12\) seen as part of their solution oe A1 cao |