At Westonci.ca, we make it easy to get the answers you need from a community of informed and experienced contributors. Join our platform to connect with experts ready to provide precise answers to your questions in various areas. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform.

Using the properties of equality to solve the equation -3x - 9 = -21, you would

add 9 and then divide by -3
add 9 and then multiply by -3
subtract 9 and then divide by -3
subtract 9 and then multiply by -3 ?