Question 828614
Given,{{{3x+6=6y+6}}}


Add {{{-6}}} to both sides:  {{{3x=6y}}}
Multiply both sides by {{{(1/3)}}}:    {{{x=2y}}}.


EITHER you have a linear equation in variables x and y
OR {{{x=y=0}}};


What you are probably working for is x=0.