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8970=-6.39n
We move all terms to the left:
8970-(-6.39n)=0
We get rid of parentheses
6.39n+8970=0
We move all terms containing n to the left, all other terms to the right
6.39n=-8970
n=-8970/6.39
n=-1403+1.7067137809187/2.2579505300354
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