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UNO [17]
3 years ago
11

What is the first step to prove that 9n - 4n is divisible by 5?

Mathematics
1 answer:
EleoNora [17]3 years ago
3 0

Answer:

Collect like terms, ie do 9n-4n = 5n ...

5n will then be exactly divisible by 5 as 5n / 5 = n

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To solve this, set up two equations using the information you're given. Let's call our two numbers a and b:
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Answer: The numbers are 100 and 10</span>
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