y=3x+9
The standard form of a linear equation is Ax+By=C.
Rewrite the equation with the sides flipped.
3x+9=y
Subtract y from both sides of the equation.
3x+9-y=0
Move 9.
3x-y+9=0
3x-y+9=0
Subtract 9 from both sides of the equation.
3x-y=-9
Rewrite in Standard Form y=3x+9