8n-4(n+12)=400

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Solution for 8n-4(n+12)=400 equation: 



8n-4(n+12)=400

We move all terms to the left:

8n-4(n+12)-(400)=0

We multiply parentheses

8n-4n-48-400=0

We add all the numbers together, and all the variables

4n-448=0

We move all terms containing n to the left, all other terms to the right

4n=448

n=448/4

n=112

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