human
Recognise whether you need to add or subtract linear equations in order to eliminate a variable Tom and Katie are discussing this pair of simultaneous equations: \( \begin{array}{l}3 x-2 y=8 \\ 3 x+y=14\end{array} \) Tom says if you add the two equations together you will eliminate a variable

Katie says if you subtract the two equations together you will eliminate a variable

Who is correct? Both Tom and Katie
gpt
When solving simultaneous equations thinks that identical terms in given equations can be eliminated by either adding or subtracting.