Answer: 3x+y=-9
Step-by-step explanation:
Step 1 is distribute y+6 = -3(x+1)
y+6 =-3x-3
Mow you have to move your x over because standard form is Ax+By=C
y+6+3x =-3
Move your +6 by subtracting from both sides
3x+y=-9
