human
Manipulate both equations so that they are in a form to be added or subtracted Tom and Katie are discussing how to get this pair of simultaneous equations in a form where they can eliminate \( y \) \(( 1)\)  \(-2 x+6 y=4 \)
\( (2)\)  \( x+2 y=8 \) Tom says you need to multiply equation \( (2) \) by \( 3 \).

Katie says you need to multiply equation \( (1) \) by \( 2 \) and multiply equation \( (2) \) by \( 6 \).

Who is correct? Only Tom
gpt
When solving simultaneous equations, thinks they can't multiply each equation by a different number