Rewrite the equation in Ax+By=C form.

Use integers for A,B,and C.
y+4=-3(x+6)

y + 4 = -3(x + 6)

Expand the equation:

y + 4 = -3x - 18

Rearrange the terms:

3x + y = -22

Thus, the equation in Ax + By = C form is:
3x + y = -22.