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?

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asked Aug 7, 2022 93.7k views

5 votes

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