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2.5(n-2.5)=-10
We move all terms to the left:
2.5(n-2.5)-(-10)=0
We add all the numbers together, and all the variables
2.5(n-2.5)+10=0
We multiply parentheses
2.5n-6.25+10=0
We add all the numbers together, and all the variables
2.5n+3.75=0
We move all terms containing n to the left, all other terms to the right
2.5n=-3.75
n=-3.75/2.5
n=-1+1/2
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