Seudónimo
Seudónimo
21-08-2014
Mathematics
contestada
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
Lilith
Lilith
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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