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Alla [95]
3 years ago
8

Are the following two expressions equivalent? 7+7x ; 7 (x+ 1/7 )

Mathematics
1 answer:
love history [14]3 years ago
6 0

Answer:

no 7(x+1/7) is not equivalent to 7+7x

Step-by-step explanation:

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Solve |3k-2|=2|k+12|
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Answer:

k = 26   or   k = -\dfrac{22}{5}

Step-by-step explanation:

|3k - 2| = 2|k + 12|

\dfrac{|3k - 2|}{|k + 12|} = 2

|\dfrac{3k - 2}{k + 12}| = 2

3k - 2 = 2(k + 12)   or   3k - 2 = -2(k + 12)

3k - 2 = 2k + 24   or   3k - 2 = -2k - 24

k = 26   or   5k = -22

k = 26   or   k = -\dfrac{22}{5}

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