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1.8n-2.5n=-0.7
We move all terms to the left:
1.8n-2.5n-(-0.7)=0
We add all the numbers together, and all the variables
-0.7n+0.7=0
We move all terms containing n to the left, all other terms to the right
-0.7n=-0.7
n=-0.7/-0.7
n=1
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