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4+2.3n=-5.2
We move all terms to the left:
4+2.3n-(-5.2)=0
We add all the numbers together, and all the variables
2.3n+9.2=0
We move all terms containing n to the left, all other terms to the right
2.3n=-9.2
n=-9.2/2.3
n=-4
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