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lesya [120]
3 years ago
7

3x - y = 7

Mathematics
1 answer:
mixas84 [53]3 years ago
5 0
-3x = -3 because you would multiply one of the equations by -1 to eliminate y.
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A driver averages 42 miles per hour and took 15 hours to travel between two cities what is the distance between the two cities
pishuonlain [190]

Answer:

The distence bettween the two cities is 630miles

Step-by-step explanation:

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antoniya [11.8K]
Since the sign before the parentheses is a + , we can just remove the parentheses.

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3 0
3 years ago
Read 2 more answers
Need help ASAP really lost
svetoff [14.1K]
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