Question

3а-7в. 20+2в. ____ + _____. 15ав. 15ав.

Answer 1

Объяснение:

пожалуйста .... .... ......

Answer 2

It seems like you're asking for help with a numerical expression involving letters and numbers. However, the provided expression isn't entirely clear. It appears to involve some pattern or operation with letters and numbers. Let me try to break it down and solve for the missing parts:

1. $3а - 7в$
2. $20 + 2в$
3. ____ + _____ (two blanks)
4. $15ав$
5. $15ав$

Unfortunately, without more context or a clear explanation of the pattern or operation, I'm unable to determine the missing parts. If you can provide more information or clarify the expression, I'd be happy to help you solve it.