The first equation
Work Step by Step
The first equation contains a variable with no coefficient in front of it. That means that we can easily isolate a variable by adding 2x to both sides, making it the better equation to use.
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.