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6/30+20/30u=-45/30
We move all terms to the left:
6/30+20/30u-(-45/30)=0
Domain of the equation: 30u!=0We get rid of parentheses
u!=0/30
u!=0
u∈R
20/30u+6/30+45/30=0
We calculate fractions
=0
u=0/1
u=0
Równanie nie ma rozwiązania
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