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Gnesinka [82]
3 years ago
9

I need help with this?

Mathematics
1 answer:
Anastaziya [24]3 years ago
6 0

Answer:

it is 7

Step-by-step explanation:

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A textbook store sold a combined total of 260 chemistry and physics textbooks in a week. The number of chemistry books sold was
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Let:

x = Chemistry textbooks sold

y = Physics textbooks sold

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Let:

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