1MA0 Higher November 2015 Paper 1 Q17
17 Solve
\[\begin{aligned} 2x + 3y &= \frac{2}{3} \\ 3x - 4y &= 18 \end{aligned}\](4)
| Answer | Mark | Notes |
|---|---|---|
| \(x = 3\tfrac{1}{3}\) \(y = -2\) | 4 | M1 for a correct process to eliminate either variable (condone one arithmetic error) or to rearrange and substitute for elimination A1 cao for either \(x\) or \(y\) M1 (dep on M1) for correct substitution of found value into one of the equation or appropriate method after starting again (condone one arithmetic error) A1 cao |