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Luba_88 [7]
2 years ago
7

What’s the factory of 15y - 21z

Mathematics
2 answers:
Digiron [165]2 years ago
7 0

Answer:

3(5y-7z)

Step-by-step explanation:

3x5=15

7x3=21

lora16 [44]2 years ago
7 0

Answer:

3(5y - 7z) .

Step-by-step explanation:

The GCF of 15 and 21 is 3 so:

15y - 21z = 3(5y - 7z)

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For integers a, b and k, we know that a >12, b > 20 and a < b. If b=7k, what is the value of k ?
Doss [256]

This question is incomplete, the complete question is;

For integers a, b and k, we know that a > 12, b < 20 and a < b. If b=7k, what is the value of k ?

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Step-by-step explanation:

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a > 12

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