I9x-4I=86

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Solution for I9x-4I=86 equation: 



9I-4=86

We move all terms to the left:

9I-4-(86)=0

We add all the numbers together, and all the variables

9I-90=0

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

9I=90

I=90/9

I=10

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