3k-k+5k-7=7 solve for k

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asked Nov 15, 2020 167k views

2 votes

3k-k+5k-7=7 solve for k

Mathematics
middle-school

Dhrm asked

by Dhrm

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5 votes

Answer:

$\: \: \: \: \: \: \: \: 3k - k + 5k - 7 = 7 \\ = > 8k - k = 7 + 7 \\ = > 7k = 14 \\ = > k = (14)/(7) \\ = > k = 2$

Amandeep Rohila answered Nov 17, 2020

by Amandeep Rohila

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2 votes

Answer:

k=2

Explanation:

3k-k+5k-7=7

2k+5k=7+7

7k=14

k=14/7

k=2

Lin Jianjie answered Nov 21, 2020

by Lin Jianjie

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