4MA0 Foundation January 2016 Paper 2 Q23
23 Solve the simultaneous equations
\(5x + y = 17\)
\(x + y = 3\)
Show clear algebraic working.
(3)
| Scheme | Marks |
|---|---|
| Eg. \(4x = 14\) or \(4y = -2\) or \(-4y = 2\) or \(5(3 - y) + y = 17\) or \(5x + 3 - x = 17\) or \(x + 17 - 5x = 3\) | M1 |
| \(x = 3.5\), \(y = -0.5\) | A1 A1 |
| (3) |
Notes
M1: for correctly eliminating 1 variable
A1 A1: oe oe dep on M1