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aleksandr82 [10.1K]
2 years ago
11

Two times one number added to three times a second number is 21.

Mathematics
1 answer:
il63 [147K]2 years ago
5 0

Answer:

x =  -  \frac{9}{17}   \:  \: y =  \frac{125}{17 }

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Answer:

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Step-by-step explanation:

Suppose that A and B are points on the number line.

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