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2n+3n+7=-4.3
We move all terms to the left:
2n+3n+7-(-4.3)=0
We add all the numbers together, and all the variables
5n+11.3=0
We move all terms containing n to the left, all other terms to the right
5n=-11.3
n=-11.3/5
n=-2+1/3.84615384615
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