Mathematics for IGCSE & O level - Equations (Section 2 - No. 19)
In the context of solving simultaneous equations, what does the term 'elimination' refer to?
Adding or subtracting the equations to remove a variable
Substituting one equation into another
Graphing the equations to find the intersection
Ignoring a variable
คำอธิบาย
Elimination means removing one of the variables by adding or subtracting the equations.