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OpenStudy (anonymous):
3n-5=7n+11
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OpenStudy (anonymous):
3n-5=7n+11 3n-7n=5+11 -4n=16 n=-4
OpenStudy (anonymous):
3n+-5=7n+11 -3n -3n -5=4n+11 +5 +5 0=4n+16 -16 -16 -16=4n /4 /4 n=-4
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