Answer:
Assuming we are solving for p the answer is p=2
Explanation:
First we distribute:
9(p-4) = -18
9p - 36 = -18
Then we add 36 to both sides:
9p - 36 + 36 = -18 + 36
Which gets you:
9p = 18
Now you divide both sides by the same factors:
9p = 18
/9 /9
Which gets you your answer:
p = 2