7=9-j

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Solution for 7=9-j equation: 



7=9-j

We move all terms to the left:

7-(9-j)=0

We add all the numbers together, and all the variables

-(-1j+9)+7=0

We get rid of parentheses

1j-9+7=0

We add all the numbers together, and all the variables

j-2=0

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

j=2

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