2i+4=72

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Solution for 2i+4=72 equation: 



2i+4=72

We move all terms to the left:

2i+4-(72)=0

We add all the numbers together, and all the variables

2i-68=0

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

2i=68

i=68/2

i=34

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