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I don't understand this equation -6n+21=12n-15

I don't understand this equation -6n+21=12n-15
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I don't understand this equation -6n+21=12n-15

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User Armandfp
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3 votes

Answer:

n=2 dont add your -6n and 21 together only variables can go with variables and you learn this in 6th-7th grade anyway.

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User Alex Mulchinock
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