I4x+8I=20

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Solution for I4x+8I=20 equation: 



4I+8=20

We move all terms to the left:

4I+8-(20)=0

We add all the numbers together, and all the variables

4I-12=0

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

4I=12

I=12/4

I=3

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