sabranay sabranay

07-10-2016
Mathematics

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What is the value of n in the equation –1/2(2n + 4) + 6 = –9 + 4(2n + 1)?

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Аноним Аноним

07-10-2016

–1/2(2n + 4) + 6 = –9 + 4(2n + 1)

-n - 2 + 6 = - 9 + 8n + 4
-n + 4 = 8n -5
-n -8n = - 5 -4
-9n = -9
n = 1

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