anonymous
  • anonymous
9a-b-2a-10b A)-7a+11b B)11a+9b C)-11a-9b D)7a-11b Help please
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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texaschic101
  • texaschic101
All you have to do here is combine like terms. Do you know what like terms are ?
anonymous
  • anonymous
no
texaschic101
  • texaschic101
Like terms are terms that have EXACTLY the same letters. Example : 2x and 3x are like terms and can be added to equal 5x 3x and 4y are not like terms and you cannot do anything with them. So lets look at our problem... 9a - b - 2a - 10b can you find the like terms ?

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anonymous
  • anonymous
9a-2a=7a?
texaschic101
  • texaschic101
correct.....9a - 2a = 7a are there any more like terms ?
anonymous
  • anonymous
I don't think so
texaschic101
  • texaschic101
what about -b - 10b ? Keeping in mind that -b is the same as -1b.
anonymous
  • anonymous
so D?
texaschic101
  • texaschic101
yes...because.. 9a - 2a = 7a -1b - 10b = -11b put it all together and you get : 7a - 11b
anonymous
  • anonymous
thank you so much
texaschic101
  • texaschic101
anytime :)

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