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Anastasy [175]
3 years ago
14

Solve for brainliest

Mathematics
1 answer:
Arisa [49]3 years ago
8 0

Answer:

3 and 6

Step-by-step explanation:

1.) 4r=12

r=3

2.) 4r+3=r+21

3r+3=21

3r=18

r=6

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