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VashaNatasha [74]
3 years ago
15

25 points

Mathematics
2 answers:
elixir [45]3 years ago
8 0
C. 4x + y = 21

4(3) + 9 = 21
12 + 9 = 21
21 = 21
natima [27]3 years ago
7 0
A=21 which is the correct answer
C=21 is also correct
Both A and C are correct
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