Question 993823
Your equation already is in slope-intercept form!


Converting into STANDARD FORM?
You want a form like {{{Ax+By=c}}}.
The equation as you have is almost like what you need, only requiring ONE SIMPLE STEP.


{{{y+(-3x)=3x+18+(-3x)}}}, I am using more than just one step;
{{{-3x+y=3x+(-3x)+18}}}
{{{-3x+y=0+18}}}
{{{highlight(-3x+y=18)}}}
or you can use the equivalent equation,  {{{highlight(3x-y=-18)}}}.  Do you understand how?