User talk:99.9.17.156

February 2020
Please refrain from making unconstructive edits to Wikipedia, as you did with this edit to Linear equation. Your edits appear to be vandalism and have been reverted or removed. If you would like to experiment, please use the sandbox. Repeated vandalism can result in the loss of editing privileges. Thank you. DVdm (talk) 15:16, 2 February 2020 (UTC)
 * If this is a shared IP address, and you did not make the edits referred to above, consider creating an account for yourself or logging in with an existing account so that you can avoid further irrelevant notices.