Question 70871
             write equation in standard form?

                y+9=-3(x-2)
The standard form of an equation of a line is {{{highlight(Ax+By=C)}}}, where A, B, and C are integers.  Some books and teachers also require that A be positive:
y+9=-3(x-2)
y+9=-3x-3(-2)
y+9=-3x+6
3x+y+9=3x-3x+6
3x+y+9=6
3x+y+9-9=6-9
{{{highlight(3x+y=-3)}}}
Happy Calculating!!!