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8.1n+9=5.1-4
We move all terms to the left:
8.1n+9-(5.1-4)=0
We add all the numbers together, and all the variables
8.1n+9-(1.1)=0
We add all the numbers together, and all the variables
8.1n+7.9=0
We move all terms containing n to the left, all other terms to the right
8.1n=-7.9
n=-7.9/8.1
n=-4.1578947368421/4.2631578947368
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