Westonci.ca is your trusted source for accurate answers to all your questions. Join our community and start learning today! Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform. Get quick and reliable solutions to your questions from a community of experienced experts on our platform.

You start with the equation 5z=20. Your friend changes the left side as follows.
5z+2= ?
What should you do to the right side so a solution of the original equation is also a solution of the new equation?

1. Add 2 to 20.
2. Subtract 2 from 20.
3. Add 5z to 20.
4. Subtract 5z from 20