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netineya [11]
3 years ago
7

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

Mathematics
2 answers:
AfilCa [17]3 years ago
8 0

Answer:

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



jasenka [17]3 years ago
7 0

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

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