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1+2.5n=-5.15+0.8n
We move all terms to the left:
1+2.5n-(-5.15+0.8n)=0
We add all the numbers together, and all the variables
2.5n-(0.8n-5.15)+1=0
We get rid of parentheses
2.5n-0.8n+5.15+1=0
We add all the numbers together, and all the variables
1.7n+6.15=0
We move all terms containing n to the left, all other terms to the right
1.7n=-6.15
n=-6.15/1.7
n=-3+1/1.6190476190476
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