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4/7(7-n)=-14/7(7-n)=-1
We move all terms to the left:
4/7(7-n)-(-14/7(7-n))=0
Domain of the equation: 7(7-n)!=0
n∈R
Domain of the equation: 7(7-n))!=0We add all the numbers together, and all the variables
n∈R
4/7(-1n+7)-(-14/7(-1n+7))=0
We calculate fractions
(28n(-)/(7(-1n+7)*7(-1n+7)))+(-(-98n0)/(7(-1n+7)*7(-1n+7)))=0
We calculate terms in parentheses: +(28n(-)/(7(-1n+7)*7(-1n+7))), so:
28n(-)/(7(-1n+7)*7(-1n+7))
We add all the numbers together, and all the variables
28n0/(7(-1n+7)*7(-1n+7))
We multiply all the terms by the denominator
28n0
We add all the numbers together, and all the variables
28n
Back to the equation:
+(28n)
We calculate terms in parentheses: +(-(-98n0)/(7(-1n+7)*7(-1n+7))), so:We add all the numbers together, and all the variables
-(-98n0)/(7(-1n+7)*7(-1n+7))
We add all the numbers together, and all the variables
-(-98n)/(7(-1n+7)*7(-1n+7))
We multiply all the terms by the denominator
-(-98n)
We get rid of parentheses
98n
Back to the equation:
+(98n)
126n=0
n=0/126
n=0
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