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3 years ago

Is 12a-a simplified?

Mathematics

1 answer:

7nadin3 [17]3 years ago

5 0

12a−a

=12a−1a

=12a+−1a

=a+a+a+a+a+a+a+a+a+a+a+a+−a

=a+a+a+a+a+a+a+a+a+a+a

=11a

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