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-Dominant- [34]
3 years ago
15

4r + 9r- 11r +7rSimfly the expressions by combing like terms??

Mathematics
2 answers:
MissTica3 years ago
7 0
Solve this one in exactly the same way as I solved the one
that you posted 1 minute before this one.

--  add up all the ' r 's .

--  add up all of the just-plain-numbers

This time, the answer looks like  9r .

You should spend a few minutes with it so that
you know where this answer comes from.  
Alex787 [66]3 years ago
6 0
9r because 4+9 is 13+7 is 20-11 is 9
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