Steps to Solve Equations
https://www.oercommons.org/courses/steps-to-solving-equations/view
I found this resource on the oercommons.
Andy Schwen has created this Activity Builder in Desmos which would provide additional practice in ensuring steps are completed correctly when solving multi-step equations. https://teacher.desmos.com/activitybuilder/custom/5c3894aa5045191e8a94bf7e