1-7(i-4)=85

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Solution for 1-7(i-4)=85 equation: 



1-7(i-4)=85

We move all terms to the left:

1-7(i-4)-(85)=0

We add all the numbers together, and all the variables

-7(i-4)-84=0

We multiply parentheses

-7i+28-84=0

We add all the numbers together, and all the variables

-7i-56=0

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

-7i=56

i=56/-7

i=-8

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