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Airida [17]
3 years ago
9

8m+3n-4m+7n help please

Mathematics
2 answers:
Lilit [14]3 years ago
7 0
8m+3n-4m+7n =\\
4m+10n
aliya0001 [1]3 years ago
4 0
8m +3n-4m +7n =
4m +10n
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Third option.

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3 years ago
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2 years ago
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MA_775_DIABLO [31]

Answer:

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2 years ago
HEY GUYS I NEED THIS ANSWER NOW
Sergio [31]

Let

x-------> the number of fiction books

y-------> the number of nonfiction books.

we know that

x+y=26 -----> equation 1

x=y+12

x-y=12 -----> equation 2

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x+y=26\\x-y=12\\ ------\\ 2x=38\\ x=38/2\\x=19\ fiction\ books

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x+y=26

19+y=26

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therefore

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Part a)  the number of fiction books is 19\ fiction\ books

Part b)  the number of nonfiction books is 7\ nonfiction\ books

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3 years ago
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