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DiKsa [7]
3 years ago
13

1.00

Mathematics
1 answer:
jenyasd209 [6]3 years ago
6 0

Answer:

6

Step-by-step explanation:

Plug in 3 into both expressions

Then add those results

2(3)+21=6+21=27

3-24             =-21

                    -------

                         6  is the sum of 27 and -21

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