Seudónimo Seudónimo

21-08-2014
Mathematics

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solve this equation -98=7(n-7)

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Аноним Аноним

21-08-2014

-98=7(n-7)

-98=7n-49

7n=-98+49

7n=-49

Therefore n=-7, as 7(-7)=-49.

Answer Link

21-08-2014

[tex] -98=7(n-7)\\\\ -98=7n-7\cdot 7 \\ \\-98=7n-49\\ \\7n=-98+49\\\\7n=-49\ \ /:7\\\\n=-7[/tex]

Answer Link

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