/sci/ - Science & Math

Brainlet need help understanding basic mathematical concepts Anonymous Tue Jun 18 16:19:13 2019 No.10734907 [View]
File: 67 KB, 1024x576, 1472390197230.jpg [View same] [iqdb] [saucenao] [google]

http://www.kaltura.com/index.php/extwidget/preview/partner_id/1535652/uiconf_id/16269922/entry_id/0_jk85l1re/embed/auto?

So this video explains how they got to the answer. But it still leaves me with basically all the questions. How did he go from x-1=20x to -1=19x? How did we go from there to the conclusion -1/19=x?

I'm so fucking confused right now, anyone know how to make this shit make sense?

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/sci/ - Science & Math

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