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21=((3/7)u)
We move all terms to the left:
21-(((3/7)u))=0
Domain of the equation: 7)u))!=0We add all the numbers together, and all the variables
u!=0/1
u!=0
u∈R
-(((+3/7)u))+21=0
We multiply all the terms by the denominator
-(((+3+21*7)u))=0
We calculate terms in parentheses: -(((+3+21*7)u)), so:u=0/-150
((+3+21*7)u)
We add all the numbers together, and all the variables
(150u)
We add all the numbers together, and all the variables
150u
Back to the equation:
-(150u)
u=0
Równanie nie ma rozwiązania
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