Question

{3y+6x=3
{x-y=-7

Answer 1

\(\huge\color{Green}{{\rm welcome}\rm~to~open~study!!!!}\) \(\Huge \color{blue}{\star^{ \star^{\star:)}}}\Huge \color{red}{\star^{ \star^{\star:)}}}\)
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Answer 2

this is open study feedback section pleas post your question at math section :)

Answer 3

please*

Answer 4

do you know how to change subjects??