SOLUTION: I am having trouble collecting like terms x-9x

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Question 621678: I am having trouble collecting like terms
x-9x
Answer by ewatrrr(10682) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

For example: collecting Like terms: 1-9   or 1 + (-9) on a number Line...

 Starting at 1 and going 9 units to thehighlight%28left%29, one is on  highlight%28-8%29       

number_line%28+600%2C+-10%2C+10%2C++1%2C-8+%29

Likewise: x+-+9x+=+highlight%28-8x%29 when collecting Like Terms