I-x+2I=-2

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Solution for I-x+2I=-2 equation: 



-I+2=-2

We move all terms to the left:

-I+2-(-2)=0

We add all the numbers together, and all the variables

-1I+4=0

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

-I=-4

I=-4/-1

I=+4

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