I2x-1I=-9

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Solution for I2x-1I=-9 equation: 



2I-1=-9

We move all terms to the left:

2I-1-(-9)=0

We add all the numbers together, and all the variables

2I+8=0

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

2I=-8

I=-8/2

I=-4

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