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myrzilka [38]
2 years ago
8

When x equals 12 , x+3y=21 need help

Mathematics
1 answer:
crimeas [40]2 years ago
6 0

Answer:

y=3

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

1. Lets focus on 55^5

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4. combine all three parts

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