Simultaneous equations are about finding values that satisfy two equations at the same time. The topic becomes easier when students use a reliable method.
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.
Keep working aligned
Neat layout matters. Lining up terms helps students avoid sign errors and makes substitution clearer.
Check both equations
Once values are found, substitute them into both original equations. This is a quick way to catch mistakes.
Move to graphs and quadratics
Higher tier questions may connect simultaneous equations to graphs or include one linear and one quadratic equation.
