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Here's the question you clicked on:
Elliot15
3n-12=4n-4
3n - 4n = -4 + 12 n = 8
sorry -n = 8 n = -8
thank you
http://www.wolframalpha.com/input/?i=3n-12%3D4n-4&t=crmtb01 n = -8
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