Foundation June 2019 Paper 3 Q30
30 Solve the simultaneous equations
\(\begin{aligned} 3x - 4y &= 11 \\ 9x + 2y &= 5 \end{aligned}\) (3)
| Answer | Mark | Mark scheme |
|---|---|---|
| \(x = 1\), \(y = -2\) | M1 | for a correct method to eliminate either \(x\) or \(y\) or method leading to substitution (condone one arithmetic error) |
| M1 | (dep M1) for substituting found value in one of the equations OR correct method after starting again (condone one arithmetic error) | |
| A1 | cao |