rahmanhalima02 rahmanhalima02
  • 01-11-2018
  • Mathematics
contestada

what doexs this equal: 3ab-9ab+7ab

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lollipops321
lollipops321 lollipops321
  • 01-11-2018

Answer:

I think that it equals 1ab. Because 3ab - 9ab= -6ab + 7ab= 1ab



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nap14hockey
nap14hockey nap14hockey
  • 01-11-2018

So, this question tests wether or not you know how to combing "like terms".


Like terms are terms (thing inbetween +or-) that have the same variables.

Since all three terms contain "ab" we can add and subtract them.


So, 3ab-9ab = -6ab

-6ab+7ab=1ab


1ab is the correct answers

Answer Link

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