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n+21/8=4
We move all terms to the left:
n+21/8-(4)=0
determiningTheFunctionDomain n-4+21/8=0
We multiply all the terms by the denominator
n*8+21-4*8=0
We add all the numbers together, and all the variables
n*8-11=0
Wy multiply elements
8n-11=0
We move all terms containing n to the left, all other terms to the right
8n=11
n=11/8
n=1+3/8
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