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9=1/2(-2+5n
We move all terms to the left:
9-(1/2(-2+5n)=0
Domain of the equation: 2(-2+5n)+9!=0We add all the numbers together, and all the variables
We move all terms containing n to the left, all other terms to the right
2(-2+5n)!=-9
n∈R
-(1/2(5n-2)+9=0
We multiply all the terms by the denominator
-(1=0
We add all the numbers together, and all the variables
=0
n=0/1
n=0
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