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DanielleElmas [232]
3 years ago
9

4. Seven times the difference of a number k and five is twenty-onel

Mathematics
1 answer:
laila [671]3 years ago
4 0

Answer:

k = 8

Step-by-step explanation:

7(k - 5) = 21

k - 5 = 3

k = 8

Hope this helps!

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We presume you want to rewrite the expression making use of the distributive property. For that, it is helpful to find a factor common to the two terms. The GCD of 4 and 10 is 2, so we can factor that out:

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