Solve the simultaneous equations
2b+20=7a5a+3b−1=0 \begin{aligned} 2b + 20 &= 7a \\ 5a + 3b - 1 &= 0 \end{aligned} 2b+205a+3b−1=7a=0Practise OCR GCSE Maths Simultaneous Equations with exam-style questions for Foundation and Higher tier. 56 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.