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oksano4ka [1.4K]
3 years ago
13

Describe three different substitutuion method

Mathematics
1 answer:
ankoles [38]3 years ago
7 0

elimanation  variations matrix

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See explaination

Step-by-step explanation:

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7 0
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A hard cover books cells for $16.50 the same title in paperback sells for $4.95 how many hard cover books must a dealer sell to
alex41 [277]

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Hope this helps

Step-by-step explanation:

$4.95 times 30 equals $148.50 so $16.50 times 9 eqauls $148.50

8 1
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