Foundation January 2021 Paper 1R Q15
15
(a) Expand \(\;5(3a + 4)\) (1)
(b) Factorise \(\;4c - 14\) (1)
(c) Solve \(\;5x - 11 = x + 6\)
Show clear algebraic working. (3)
Show clear algebraic working. (3)
| Scheme | Marks |
|---|---|
| \(15a + 20\) | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| \(2(2c - 7)\) | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| E.g. \(5x - x = 6 + 11\) or \(4x - 11 = 6\) or \(5x = x + 17\) | M1 |
| \(4x = 17\) or \(-4x = -17\) | M1 |
| Working required Answer: 4.25 | A1 |
| (3) | |
| (5 marks) |
Notes
M1: for correct rearrangement with \(x\) terms on one side and numbers on the other
or
the correct simplification of either \(x\) terms or numbers on one side in a correct equation
A1: oe, dep on at least M1