Answer:
Step-by-step explanation:
We have
to the third decimal is 2.930 (i might be wrong on the rounding part)
-9=b
-10b+11-3b-7=-12b+13
combine like terms
-13b+4=-12b+13
get ride of ur smaller variable
4=b+13
subtract 13
Wow, there have been a lot of free points today
It's going okay, you?
9
21-12
The answer is 32
That's easy