Foundation November 2017 Paper 3 Q27
27 Solve the simultaneous equations
\[\begin{aligned} x + 3y &= 12 \\ 5x - y &= 4 \end{aligned}\](3)
| Answer | Mark | Notes |
|---|---|---|
| \(x = 1.5\), \(y = 3.5\) | M1 | for correct method to eliminate one variable (condone one arithmetic error) |
| M1 | (dep) for substituting found value in one of the equations or correct method after starting again (condone one arithmetic error) | |
| A1 | for both \(x = 1.5\) and \(y = 3.5\) |