-21=-1/10j

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Solution for -21=-1/10j equation: 



-21=-1/10j

We move all terms to the left:

-21-(-1/10j)=0



Domain of the equation: 10j)!=0

j!=0/1

j!=0

j∈R



We get rid of parentheses

1/10j-21=0

We multiply all the terms by the denominator


-21*10j+1=0

Wy multiply elements

-210j+1=0

We move all terms containing j to the left, all other terms to the right

-210j=-1

j=-1/-210

j=1/210

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