DEPRECATED Understanding the process for solving linear equations

Problem

Below are the steps Colleen used to correctly solve the equation 5, x, equals, 2, left parenthesis, x, plus, 1, right parenthesis for x.
The result from Step 1 is missing.
What could Colleen have written as the result from Step 1?
Choose 1 answer:
Choose 1 answer:
Do 7 problems