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5n-(-30)=5.7
We move all terms to the left:
5n-(-30)-(5.7)=0
We add all the numbers together, and all the variables
5n+24.3=0
We move all terms containing n to the left, all other terms to the right
5n=-24.3
n=-24.3/5
n=-4+3.3076923076923/3.8461538461538
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