Verify that x=12\displaystyle x=\frac{1}{2}x=21 and y=−3y=-3y=−3 are the solutions of the simultaneous equations
3y+11=4x10x+2y+1=0 \begin{aligned} 3y + 11 &= 4x \\ 10x + 2y + 1 &= 0 \end{aligned} 3y+1110x+2y+1=4x=0217 exam-style questions on Eduqas GCSE Maths Simultaneous Equations. Each one has a worked solution and a mark scheme showing where the marks go.