mathlady12
03.03.2020 •
Mathematics
@katie please stop deleting my questions. I'm trying to get help I'm not doing anything wrong I don't understand the work and you're just deleting them. So please stop
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Ответ:
The same thing happened to me, so I emailed them about it and they told me it was a mistake in the system they use to detect if your question is valid.
You can email by going to the contact tab of their website, and entering your subject along with your email.
I think what happens is when you ask a question saying "please help" or something like that with an attachment of your problem it automatically removes it because you're not asking it in the question itself, only in the attachment.
Ответ:
-16a+24b-30b+20a
(-16a+20a)+(24b-30b)
THE ANSWER IS 4A-6B