Simultaneous equations are about finding values that satisfy two equations at the same time. The topic becomes easier when students use a reliable method. A related next step is my Algebra revision guide.
Start with elimination
For many GCSE questions, elimination is the clearest method. Match one coefficient, add or subtract the equations, then substitute back to find the other variable. A related next step is my Edexcel IGCSE Maths formula sheet guide.
Keep working aligned
Neat layout matters. Lining up terms helps students avoid sign errors and makes substitution clearer. A related next step is my Avoid these GCSE Maths mistakes to improve your exam performance guide.
Check both equations
Once values are found, substitute them into both original equations. This is a quick way to catch mistakes. A related next step is my Best GCSE and IGCSE Maths revision guides guide.
Move to graphs and quadratics
Higher tier questions may connect simultaneous equations to graphs or include one linear and one quadratic equation.
