Answer:
a=18
Step-by-step explanation:
Pamela is incorrect. When you multiply anything negative by a negative, the product will always be a positive. Because the two negative signs cancel each other out.
Answer:
x=-4
x=4
Step-by-step explanation:
4x-5=31
Add 5 to both sides
4x=36
Divide both sides by 4
x=9
Final answer: 9