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2/7j=-1/7=3/14
We move all terms to the left:
2/7j-(-1/7)=0
Domain of the equation: 7j!=0We get rid of parentheses
j!=0/7
j!=0
j∈R
2/7j+1/7=0
We calculate fractions
=0
j=0/1
j=0
Równanie nie ma rozwiązania
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