91=28+7j

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Solution for 91=28+7j equation: 



91=28+7j

We move all terms to the left:

91-(28+7j)=0

We add all the numbers together, and all the variables

-(7j+28)+91=0

We get rid of parentheses

-7j-28+91=0

We add all the numbers together, and all the variables

-7j+63=0

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

-7j=-63

j=-63/-7

j=+9

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